Point is that Regions and countries are becoming more unified on trade, but also separating when diverse cultures are too difficult to assemble in a single country.
What the hell are you on about?
You foolishly compared Britain leaving the EU to the break-ups of Czechoslovakia (a highly psychologically traumatised populace at the time) and Yugoslavia (a mad punch-up, to put it mildly).
Now you're saying your point in doing so was to illustrate the fact that regions are breaking apart from larger assemblies of nations because/when it's too difficult to assemble disparate groups in a single country.
What does that have to do with Brexit? The EU isn't a single country and Britain leaving it isn't because they've all found it rather difficult to integrate Britons into the country that isn't.
Make some sense, man! Come on, think logically and within the bounds of reason....you're an engineer.
Do you know what Europe is like? Anything west of Ukraine is pretty well the same place. Of course there are pretty big cultural differences amongst the various ethnic groups found therein, but socio-politically and socio-economically, the continent (including all outlying islands) is basically the same sort of liberal democracy. In fact, you can go ahead and chuck in Canada, Australia, and New Zealand and you've got some sort of liberal world order-type assembly of nations.
Brexit is a fool's game.
Edit: No, you know what.....everything west of Vladivostok is basically the same place, though if you start adding some of the eastern friends you start introducing less liberal versions of socio-political being, but by and large, culturally, it's the same place. I'm telling you, those white folk are all the same. I'm not sure why some Britons think they're special.