Please don't make this discussion political. We are all part of the same community here and share similar values.
Point of this topic is that almost all of us can agree that we need a place for local discussion and that a single topic hasn't been enough for a long time.
As for using the Croatian board by Serbian users, I don't think anyone wants that as it would bring irrelevant topics to both sides.
I really don't see a reason why Croatian users would be happy with losing their board and renaming it so the entire region that has very different topics can use it.
If admins have to bring us under the same roof due to some technical reason then that is fine, but there is no doubt that the best solution here is for Serbian speaking users to finely get their own local board. I believe that activity in Serbian speaking topic is a lot bigger now than activity in some of these boards when they were created and according to examplens it is even bigger than current activity in Hebrew language board.
There is no doubt that Serbian users desperately need their own board, the question is will they be able to get it or not. I think we all hope here that they will.