SNP/Plaid Cymru Axis Highlights Legislative Devolution’s Domino Effect and the Balkanization of the UK
Written by Stephen Bailey.
Scottish and Welsh separatist parties, the SNP and Plaid Cymru have recently announced a new partnership to form a ‘progressive alliance’ against Westminster. The collaboration was formalized through a meeting between First Minister John Swinney and Plaid Cymru Leader Rhun ap Iorwerth in Edinburgh on October 30th 2025.
The meeting at Bute House marked a significant step in strengthening cooperation between the two separatist parties, building on their previous ties.
Both leaders have stated that a future Plaid Cymru devolved administration in Wales and SNP administration in Scotland would represent a ‘wake-up call’ to the UK Government.
As of November 6th 2025, the partnership remains a strategic political alignment focused on upcoming elections in May 2026, with no indication of formal coalition government yet established.
This newly announced axis of separatists from different parts of the UK highlights yet another major intrinsic flaw in legislative devolution-the ‘Domino Effect’.
The ‘Domino Effect’ can be defined in the following terms. Legislative devolution in one part of the UK (SNP-dominated devolved Scotland mostly, but not exclusively) has enabled anti-UK separatists (the SNP are the prime villains in this) to rise to power, ignore reserved limitations on their remit and use their devolved executive to pursue referenda on separating their part of the country from the rest of the UK. This has encouraged separatists in other devolved parts of the UK (Wales and Ulster) and even England, to pursue their separatist agenda much more aggressively when they wouldn’t have without this encouragement in a kind of knock-on effect like a row of in line dominoes falling after being knocked over by the previous one, hence ‘Domino Effect’.
It is manifestly true that this has been the case throughout the entire UK. Take Wales, for instance. The Welsh separatists, Plaid Cymru, have existed since 1925 (nine years before the formation of the SNP) but in their early years had been more of a cultural movement, trying to promote Welsh language and culture. They had promoted the speaking of Welsh and other Welsh cultural phenomena, like the Eisteddfod (an annual festival that showcases Welsh music, literature, art, and other cultural themes). They had desired separation from the UK, but this was a very much longer-term objective.
After the introduction of legislative devolution in the late 1990s and influenced by the SNP’s aggressive campaign for separating Scotland from the rest of the UK, this stance began to change and Plaid began to adopt a much more militant pro-separation agenda. The domino effect was starting to come into play. They pushed for new referenda on granting the then Welsh Assembly more and more powers, including one in 2011 that substantially increased the areas of its legislative competency. Emboldened by the successful attempts of the SNP to hold a separation referendum, Plaid began trying to jump on the bandwagon and has intimated a few times now that they would push for a separation referendum in Wales if they felt the conditions were right (i.e. they felt they would win). In an ominous echo of the 2007 re-naming of the Scottish Executive to Scottish Government by the SNP in 2017, the Welsh assembly announced that it now wished to be known as the Welsh ‘parliament’, a further ominous step in the direction of independence. Subsequently, the Welsh ‘parliament’ was further renamed the ‘Senedd’
Added to all these depredations, Plaid have also intimated that they will definitely begin agitating for a separation referendum if there is another one in Scotland and Mark Drakeford, the then Labour First Minister in the Welsh ‘parliament’ tried to bribe the electorate by saying he would grant Plaid a referendum on separation if Labour were re-elected in the 2021 elections AND he would allow Adam Price, the Plaid leader, to be First Minister.
To cap it all, the new SNP/Plaid axis has now emerged, as described above.
All of this resurgence of aggressive anti-UK separatism has only come about as a knock-on effect of the SNP’s machinations in Scotland. Events would not have developed in this direction if legislative devolution hadn’t been introduced into Scotland.
A similar, though markedly more pronounced effect is in evidence in Ulster. The introduction of legislative devolution there has witnessed a rising tide of anti-Union separatist sentiment and a volumetric increase in calls for separating Ulster from the rest of the UK and placing it under Dublin control. As with Wales, these clarion calls for Dublin control have been magnified by the megaphone of legislative devolution, which has brought the topic very much into the forefront of the public’s eye, something that just wouldn’t have been anywhere so acute without legislative devolution.
Separatist and even some ‘mainstream’ politicians in England have been affected by this phenomenon as well. Even though the idea of English regional assemblies was conclusively defeated in a referendum held in North-East England on 4th November 2004 by a margin of 77.9% to 22.1%, the knock-on effect of legislative devolution in Scotland, Wales and Northern Ireland has led to a resurgence in the concept of English regional government. This idea was resurrected in 2012 when certain Northern English MPs wrote a letter to ‘The Observer’ newspaper and openly stated that it was time to reconsider having Northern regional assemblies (in England). They were clearly inspired by Scottish legislative devolution. Huddersfield MP Barry Sheerman wrote:
‘The North has a much larger population than Scotland [which has an assembly]… We don’t have a body to deal with strategic problems and issues for the North [of England]’.
The public in these areas of the North started to have concerns that legislative devolution had left the northern regions of England as the poor relations of Scotland in terms of economic and political clout. These concerns were magnified even more when Holyrood got more powers in 2016 and would be further exacerbated if (or it would be more correct to say ‘when’) more powers are added in the future. The continual granting of new powers to the Welsh ‘parliament’ has, and will, continue to have the same effect on England.
What’s more 2021 saw a further unsettling development with the formation of a political party dedicated to the political independence of the North of England from the rest of the UK. There’s even a political party seeking separation for Yorkshire as well.
London is also undergoing the same process of travelling down the legislative devolutionary, constitutionally fragmenting road. An assembly was set up with powers over many matters affecting the capital of the UK and also had a directly elected mayor who answered to this assembly.
London Mayor, Sadiq Khan, has ignored the remit of devolution in London, just like the SNP has in Scotland, as well as Plaid Cymru in Wales and IRA/ Sinn Fein plus the SDLP in Ulster, to look after the Capital’s local affairs and got involved in matters that are the business of the UK Government at Westminster, such as Brexit for example-he approached a foreign country, Germany in this case, during the UK’s negotiations with the EU over Brexit and asked for London to be treated as a separate case from the rest of the UK in the post-Brexit arrangements. He’s acting as if he’s the Prime Minister of a sovereign, independent city-state of London, whose affairs are totally separate from the rest of the UK.
If matters follow the same trajectory as Scotland (especially), Wales and Northern Ireland, this tendency to consider London to be somehow different and separate from the UK will get worse and would pose an obvious, clear and present danger to the constitutional integrity of the UK, as has undeniably been the case in Scotland, Wales, and Ulster.
Recently, the Mayoral Office even acquired an official website with an address of ‘LGOV’, or ‘London Government’, a clear indication that the Mayor sees himself as the Prime Minister of the city-state of London and the Greater London Assembly as the seat of the Capital’s ‘national’ government.
The balkanization of the UK, initiated and accelerated by the introduction of legislative devolution, continues to accelerate, introducing an extremely ominous potential for future further fracturing the constitutional integrity of the UK.
The extreme South-West of England has added another domino to the chain. The Duchy of Cornwall has, for a long time, had a history of a small minority of residents asserting that they have a separate cultural identity from the rest of England. They had a different language and certain elements considered themselves to be of different ethnic origin. However, Cornish became a dead language by the end of the Nineteenth Century having essentially ceased to be used by the vast majority of the population and the concept of a separate Cornish identity as a political issue declined and fell into abeyance as a result.
Despite Mebyon Kernow, (‘The sons of Cornwall’) a political party that pushed for Cornish autonomy (I.e. a Cornish assembly) being formed in 1951, it was the introduction of legislative devolution in the late 1990s that really sparked interest in a devolved assembly in Cornwall. The Cornish Constitutional Convention launched a campaign for a devolved Cornish legislature on the back of the referenda in Scotland, Wales and Ulster that led to the setting up of devolved institutions in these areas. In October 2007, Andrew George, a Liberal Democrat MP stated:
‘If Scotland is benefiting from devolution then Cornwall should learn from this and increase the intensity of its own campaign for devolution to a Cornish Assembly’. Clearly, the domino effect was spreading further in England, thanks to devolution in other parts of the country. In 2009, Liberal Democrat MP William Rogerson presented a ‘Government of Cornwall’ Bill before the House of Commons which argued for a devolved Cornish assembly that was very similar in set up to the Scots and Welsh legislatures. The domino effect-like influence of Scots, Welsh and Ulster legislative devolution is clear from the following statement made by Rogerson:
‘Cornwall has the right to a level of self–government. If the Government is going to recognise the right of Scotland and Wales to greater self-determination because of their unique cultural and political positions, then they should recognise ours’.
But that’s not all. Not content with (trying) to break up the United Kingdom, the SNP are now imperilling the very existence of Scotland as a unitary political entity.
Recent developments have shown that the actions of the SNP are having a type of domino effect within Scotland itself.
The Shetland Isles have voted to explore ways to become independent from Scotland. The Shetland Islands Council overwhelmingly voted to start looking at ways to become financially and politically independent from Scotland. Councillors voted 18 to 2 in favour of a motion to formally explore options ‘for achieving financial and political self-determination’. In a debate lasting more than an hour, members argued decision-making has become increasingly centralized and public funding for the island has been cut under the SNP-dominated Holyrood administration.
Councillor Steven Coutts stated that devolution has not benefited the area and said the Scottish Parliament feels ‘remote’ to islanders, who face some of the highest rates of fuel poverty in the country.
‘The status quo is not working’ he said, adding: ‘Devolution and the Islands Act have not made any tangible difference to the quality of life’.
Other regions of Scotland (the Borders, Clydesdale, Tweeddale; Berwickshire, Roxburgh, Selkirk; Dumfries and Galloway) have expressed similar sentiments and the reason for it is invariably unhappiness at the way the SNP is mismanaging their affairs. The SNP and their misdeeds have had a knock-on effect on Scotland itself similar to that they’ve had on the UK generally as well as England. The SNP and legislative devolution have encouraged a previously unitary, cohesive country, the UK and a part of that country (England) to fragment into several separate entities. It’s just extremely ironic that it’s the SNP’s own actions that have led to this domino effect in Scotland itself.
Added to this, why is the UK Government not enforcing the remit system set up by the devolution ‘settlement’ in which the devolved legislatures (Holyrood, the Welsh ‘parliament’ and Stormont) can only debate and pass legislation on matters that aren’t reserved for Westminster’s consideration? Why does it allow the anti-UK separatists to abuse the remit system to such a monumental degree? It’s irrelevant that separation is the raison d’être of the SNP (or Plaid or IRA/Sinn Fein and the SDLP). They simply have no business getting involved in reserved matters. The then Labour government did nothing to stop Alex Salmond changing the title of Holyrood from the ‘Scottish Executive’ to the ‘Scottish Government’, even though it was extremely obvious that this was a deliberate attempt to subvert the concept of legislative devolution and move Holyrood towards a perceived equal status as a ‘national government’ on a par with Westminster. Added to this, the Welsh Assembly changing its title to ‘parliament’ is something that the UK Government does not appear to have wanted to stop. All in all, there has been an apparent and palpable lack of interest and vigour from Westminster in defending the Union against these increasing encroachments by separatism on UK sovereignty and their pretensions to being national governments, rather than just devolved administrations.
There is a clearly discernible pattern of legislative devolution in one part of the UK, I.e. Scotland, having a knock-on effect on other parts in a domino-like effect. The SNP in Scotland set the ball rolling by aggressively ignoring their devolved remit and this clearly encouraged other devolved regions like Wales and Ulster to follow suit and become more bellicose in their demands for more and more autonomy and even to push for full separation. Moreover, this phenomenon has spread to England, as seen in the North-East and the South-West of the country. It’s even threatening to break up Scotland as many areas of that part of the UK and its associated islands have strong links and sympathies with the UK and don’t feel much of a bond to Scotland, politically or culturally, and have either openly expressed a desire to remain in a constitutional arrangement with the UK or have the potential to do so. Legislative devolution has unleashed an uncontrollable wave of copycat aggressive separatism that threatens to throw the British Isles back to the early Tenth Century days of being a disunited, warring hodgepodge of fiefdoms and kingdoms.
© 2017-2025 Stephen Bailey










