Sorry to weigh in on this as it is already a waning topic, but my computer has been out of action since last Friday (Heavy winds damaged the FIOS cable box outside.)
As for Kosovo's identity, if you go by population, Kosovo is overwhelmingly Albanian and this would support a notion that the territory should be independent of Serbia (which since the breakup of Yugoslavia has not been too tolerant of Albanian minorities within its diminished realm). However, Kosovo contains land and monuments that were the original homeland of the Serb nation; and in the hearts and minds of patriotic Serbs, it is forever a part of Serbia. This is the dilemma. The Serbs mentally cannot let go of Kosovo.
This is in contrast with Poland and Germany: both contries lost substantial territory during and after World War II: Poland lost its eastern half in the 1939 Nazi-Soviet pact that enabled Hitler to invade Poland. Much to Roosevelt's and Churchill's frustration, Stalin refused to cede any of that territory back to Poland at the Yalta Conference. As a result, Germany had to cede a large portion of its eastern lands to Poland in 1945 (the city of Stettin, provinces of Pomerania, Silesia and one-half of East Prussia [other half went to USSR] as well as the city of Danzig). Adding to German indignation was the forcibie removal of ethnic Germans by the vengeful Poles, with a heavy loss of life. However, both contries have accepted the status quo and have moved on. In short, both countries have "let go" of their eastern provinces as opposed to the Serbs.
I went to the game and saw the sign. Ironically, Mike Hall was there as well, courtside with Pops. Posters here may recall Mike Hall's post a couple of years ago where he bitterly recounted being pelted by small batteries by Serbian spectators who dispised Americans (they blame the Kosovo rebellion on the USA). Watching that sign waving kid must have rekindled unpleasant (and painful) memories.
Bottom line: Let's keep politics out of basketball games.