Earlier quoted context omitted.
Serbia did commit massive attrocities and genocide against both Bosnians and Albanians in Kosovo. They also had wars with Slovenia, and Croatia. They last gesture was massive ethnic cleansing. The US intervened when things went out of hand. Putin risks to end up like Milosevic, a war criminal.
It did not, if you have any international court verdict that says that Serbia conducted a genocide, I would like to see it. Also Serbia was not at war with Slovenia. Those are the basic facts. Now, even if those things were true, they are claimed by the proponents of bombing, enemies if you will, the same way that Putin is claiming there is a genocide of million Ukrainians in Ukraine. Do you believe your enemies?
https://en.wikipedia.org/wiki/Ten-Day_War
NATO bombing was not out of the blue. The head of Yugoslavia was a similar mad man (to Putin), just warring out of desperation. The best proof one has of his lunacy is the fact that Montenegro split from Serbia without any deaths. How did this happen? Due to the mad man dying in 2000. I'm pretty sure he would have enacted order by butchering civilians again, inside "his" borders.
Serbia is also the only country out of these conflicts that does not guarantee seat in the parliament for the exYugoslav minorities. Even though the leadership displayed aggression that was successfully deflected, the defenders made a deal to guarantee inclusion of the Serbian minority in the parliament (Croatia, Kosovo etc.)
Still, we have a country like Germany, that self-flagellates for decades and the sentiment of the majority is quite clear. While the general sentiment of people/press in Serbia is that NATO bombing is equivalent to Putin bombing Ukraine. and yeah, every now and then, the most popular Serbian (Monacoan) tennis player will say things like "Kosovo is Serbia" with complete indifference and still be the Jesus like figure his father makes him out to be.