Your attempt to cast Russias annexation of territory it has had claims on for hundreds of years as a misdeed isn't really effective. There were actual Russian civilians being protected by Russian forces during that process. There was a fully armed nuclear base that was under threat of falling into the wrong hands during the Ukraine uprising (which, incidentally, the rest of the world knows full well was funded by the CIA).

Iraq lost 5% of its population during the American invasion.

How many Americans were in Iraq, who were under direct threat of violence from a fascist group involved in a coup d'etat?

Russia hasn't reached America's level of evil, destructive, criminal warfare, that is for sure. The claim that America was surgical and careful in its invasion(s) is specious at best, but really just downright evil. Literally millions of people are still suffering from the effects of America's callous invasion.

4 million innocent people have lost their lives under America's war machine. How many Ukraine soldiers did Russia take during the annexation?

Not even comparable levels of magnitude, no matter how finely tuned your moral relativism chops are ..