Let me play whataboutism. Cannot we say that in this case the independence of Kosovo should be decided by all citizens of Serbia (who are against it)? And indep

Let me play whataboutism. Cannot we say that in this case the independence of Kosovo should be decided by all citizens of Serbia (who are against it)? And independence of ex-soviet satellite countries should be decided by all citizens of ex-USSR which means they have to return back to Mother Russia?