One party is currently torturing and murdering civilians, which tends to skew the conversation in a particular direction. Once Russia has withdrawn all troops from Ukraine we can discus behavior of other nations.
Which city did the US flatten since Dresden? How many hospitals did they voluntarily bomb? Hell, how many hospitals did the US bomb at all (and no, I don’t assume that number is zero)? Now, compare that to what happened in Karkhiv alone.
Playing chicken when Assad used chemical weapons on Syrian civilians and Putin razed Grozny were stupid mistakes. This is not a reason to let the same thing happen again in Ukraine.