Do not overestimate the meaning of those small and irrelevant countries. There is eminent interest in western Europe that their residents stay where they are - no matter if we speak about Serbians, "Kosovarians" or Albanians. Beside of that Europe is for sure not interested. Nobody cares what happens in the Balkans as long as those people there do not leave their home countries. The first reason to move into Kosovo was the fact that German and other European politicians feared a stream of useless refugees after the numerous Serbian war crimes in 1999. Milosevic and his compatriots were dumb enough not to understand this mechanism that triggered the NATO intervention. Now they had to pay - with Kosovo. Since most residents of Kosovo are muslim it is the easiest way to suppress a horde of new and useless immigrants pushing into western Europe by giving them a muslim nation. The Serbs should understand that we western Europeans prefer to hear a muezzin rather in Kosovo than in Berlin, Paris or London.
BTW - live is hard but the Serbs will survive it.
They have one. It's called Albania. And I suspect that most of the Muslims living in Kosovo will either be dead or living in Albania by this time next year.