What gives one nation, or group of nations, the authority to partition a sovereign nation just because immigrants do not play well in the sandbox with the owners of the sandbox. Wilson made a mistake when he tried to make a nation from desperate peoples who just happened to speak very similar languages. The US still needs to atone almost 100 years later?
Kosovo was considered a part of Serbia even when under the influence and threat of the Ottomans. Albanians are entitled to claim the land as theirs by possession as squatters?
The US had better be prepared to wave good-bye to the Southwest under that reasoning.
Serbia may fight to maintain sovereignty.
I am US, not of Serbian ancestry, however, I do speak Serbian and have spent time there.