The Serbs believe their "systematic and planned" atrocities were in retaliation for the "systematic and planned" NATO bombing, which killed 1500-2000 civilians, plus hundreds of soldiers, destroyed the economy and the environment of Yugoslavia. You might say this was an "act of resistance"; but the Serbs believe it was an act of state terrorism. Rather than condemning both equally, you have chosen to insert yourself into this ancient and bloody conflict and choose one side over the other. That's rather perverse, in my opinion.
> Hell, by your logic, Native Americans deserved what they got (or at least
> whites are morally equivalent) since there were plenty of scattered
> massacres of whites in response to European encroachment.
>
No, the Native Americans were invaded by foreigners who tried to wipe them out. You can't generalize about these conflicts: some are truly one-sided pogroms; others are tit-for-tat grudge matches that go on for 1,000 years. The Kosovo conflict is of the latter category.