The weird thing is, if you speak to Scottish people, a lot of the leave UK are also Brexit. The leave UK was because they wanted to manage their own affairs, and just handing that to Brussels is not in their plans.
Wales, who knows, I have Welsh family and they have never mentioned leaving the UK as an option, that union has been in place 800 odd years.
Also how would that work? There is no way Scotland or Wales could just walk into the EU, they'd have to apply, and Spain/France would block it.
Otherwise Corsica and Cataluņa would be all over that.
Anyway why does it matter, those nasty Brits are leaving(possibly

), and congrats you're gonna get Albania and Ukraine, more cheap labour for you.