It is a well known historical fact that Abraham Lincoln legally emancipated our African slave laborers to forestall British and French recognition of the rebellious Southern States of the Confederacy. Some States or Nations, get recognized, like Israel, and Slovenia, some, like the Kurds and the Basques don't. It took the deliberate murder of millions of European Jews to get a homeland, Slovenia seems to have gotten a free ticket, so to speak. Western Europe, NATO, is not an impartial peaceful neighbor, since it actively supported the succession of Slovenia and Croatia, the two Western, Roman Catholic provinces or nations. The secession of these two parts of the Yugoslavia left the other mixed Muslim, Eastern Orthodox Rite areas in chaos, being less able to clearly define ethnic, religious and racial boundaries.
Diversity works well only in large, powerful states or empires.
This is a slow struggle for power as a revived Europe expands its area of control. Croatia is also an independent country as is Macedonia. But, following the European logic that produced two world wars in 25 years, what's good for Slovenia is not good for Kosova. The latter would be a bad example while the former wasn't. The Albanians in Montenegro and Macedonia might become restive and want to revise borders or even unite with Albania into one grand dilapidated poor house Albania.