The "independence pact"

[Sunnnyday]

I'm surprised no-one's started a thread on this, so here goes. The leaders of Scotland, Wales and Northern Ireland have signed a Joint Memorandum of Understanding and have called on the UK Government to start preparing for constitutional change.
Listening to the BBC on this, there is currently no majority in favour of splitting from the UK in any of the devolved nations, though Scotland is closer to it than the other two. It's a matter of those who are currently in government being in favour, rather than their populations being in favour. So is this no more than a publicity stunt?
And should any referendum on such a huge issue, which, regardless of your viewpoint, will cause enormous contention, upheaval and disruption over many years, be on a majority vote basis? Have we learnt anything from Brexit?
I'm also confused as to why the leaders of Scotland and Wales are apparently confident that their countries would be swiftly welcomed into the EU, and how they would manage a hard border with England.

Incorrect.
The UK economy has experienced positive real GDP growth overall (for example, ranking fifth in the G7 with 6.0% real growth from late 2019 through early 2026), continuing to expand modestly rather than suffering a catastrophic collapse.
Goods trade with the EU has faced friction and paperwork from non-tariff barriers, causing goods exports to lag behind other G7 nations. However, the UK's service sector (such as IT, finance, legal, and consultancy services) has seen strong export growth both inside and outside the EU. Services sector exports from the UK to the EU are up 57% over the last decade.
One potential Brexit benefit was the UK's ability to sign its own trade deals outside the EU. The UK-India deal stands out as an example of where the UK broke ground well beyond what might have happened within the EU

There is another reason not spoken out loud. Brussels is preferred over London. The European Union preferred over the "British Union". Purely emotional but there you go.

PS Re the SNP's £125 000 Campervan. Appalling. As was Boris Johnson's £200 000 Downing Street makeover with public funds.

Though the camper van was SNP members funds rather than the general public. Still outrageous but not public funds.

At least Boris Johnson left Downing Street behind him when he left. The camper van was pure theft.

Rather nice to have the negotiating power of 27 countries rather than just 1, isn't it?

Poppycock.
It's not so good to have to wait for the approval of 27 countries before you make a trade deal. eh?

Leaving the European Union allowed us to regain legal freedom to negotiate independent, sovereign free trade agreements (FTAs) with non-EU nations, a power restricted while inside the EU's common external trade policy.

Still not tax payers money.