Earlier quoted context omitted.
Maybe in your dreams. Few counter points: - Austria-Hungaria was a multi ethnic, multi religious, multinational entity - Similar Holy Roman Empire before - House of Habsburgs at some point ruled parts of middle Europe, some Netherlands and Spain - Spain is a multi-national state till today, with strong tensions - Germany was for a long time only a loose group of small countries - Denmark ruling other Scandinavian cou…
Wow, that's an impressive number of goal post moves in a single post. I'm talking about the last 25 years, or at least post industrial revolution. If you want to debate this in a neutral place, I'm happy to do so, but this isn't exactly a level playing field here on hacker news. https://www.youtube.com/watch?v=AoWibRxD_pY
I think Europe was far more ethnically homogenous before WW2 and as the link shows rather violent. So your reasoning is just plain wrong.
[1] https://en.m.wikipedia.org/wiki/List_of_conflicts_in_Europe