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?
First of all, all the politicians that would look bad after propagating Brexit. Then those few select rich who gained a fortune from Britain’s misery. And those people who fell for their lies, and simply can’t admit that they had been had. This is the one side.
The other side is the EU. Brexit has cost the EU a fortune, and a lot of work. Re-admitting the UK would be put them in a bind to make sure - absolutely sure - that such a shit show will never, ever, happen again. Basically “Fool me once…” And they would have to convince all current EU members that this time, the UK really means to join and stay and take the whole EU stuff seriously, and not just like they did when the UK joined for the first time: To be in just to be able to easier weaken them.