A break up of UK would be a let down as there is always safety in numbers and as a nation UK is an attractive member to the EU as it is the third largest contributor to the EU pot.
The UK is leaving the EU, that's the whole problem. Scotland and NI don't want to and are being told they don't count. That's England's doing, nobody else's.
As smaller individual Countries are they not going to get an even bigger hammering by going independent and then trying to rejoin the EU or set up trade deals outside the EU
Scotland has already been told that the member states won't stand in the way of joining the EU. NI would likely become part of Ireland, so no need for a new application as Ireland already is a member state. Wales, I don't know tbh.
England joining the EU? Aye that's going to happen. After the blatant xenophobia, lies and bitterness do you really think the EU would entertain it? It requires all member states to agree, and for a start I can't see Ireland or France agreeing. Germany probably wouldn't either.
Now it appears the union is important, it's too late.
The expression be careful who you step on on the ladder up, because you'll have to face them on the way back down springs to mind.
Either that or hoist by their own petard.
Either way, it's the government in Westminster and the rise of the far right in England (which has not happened in the other nations of the UK by a considerable stretch) that has caused this.
Now people and governments are distancing themselves we've suddenly become important?
Pfft.