Pak-One, my point was, ethnic /religious minorities exist everywhere but that has never blocked the creation of new states despite the risk and actual occurance of bloodshed. Yugoslavia is an example as many other examples in history. There is a sizeable Arab minority in Iran but still there are Arab countries.
And I think you are becoming somewhat cocksure to make that claim that it was not a positive development for croatians, Muslims, Slovanians, etc. How can you make such a claim on behalf of these groups. I have met many Croatians, Slovanians, etc. and they are very happy now that they are living in their own states.
Existance of minorities doesn't mean all nations/ethnic groups are lumped togethor in one super state to avoid mistreatment of minorities. That is illogical and irrational.
The right answer is international conventions, UN charter, state responsibility, etc.
Besides, such developments are not in our control and geopolitical issues are not decided according to our wishes. Great power politics, international system, the attitude and strength of your own state, etc. play a lot of role.