Admittedly, I don’t know much about Brexit, but from what I have been exposed to, it seems like a decisively economical and political impairment that made travel and business with the rest of Europe more difficult and costly. Since it is so highly criticized as a terrible move, why doesn’t the UK just rejoin the EU?
I agree that the EU needs quite some work to get their acts together. They will basically need a Maastricht II Accord that really turns the EU into an entity that is closer to a national state before they should admit new members. But I can see that admitting Ukraine is something that will probably happen within a very, very short time once there is peace.