> When other countries historically have ‘solved’ this problem, it ends up being pretty terrible for the minority groups

It's pretty terrible in Lebanon now as well, and there was a horrible civil war between 1975 - 1990 which could happen again. I'm just saying - yes change could be for the worse, but it's not like things are peachy now. A split up has advantages even if people need to relocate. Cyprus is a pretty good example on how it could work out. Also as horrible as the clusterf** of Bosnia was, it seems the more separated the different ethnicities are the better.