So because the US has pulled a bunch of bullshit over the last several decades they shouldn't get involved when there is a real evil to fight? That's a boneheaded take. What if it was actual real Nazis? What if Nazis got ahold of a country in Europe and started invading and putting people into death camps? Should the US just say "I don't know man, we've fucked up in the middle east, south America, and southeast Asia so much we're just going to sit this out"?

Yes, western imperialism is bad. No, everyone opposed to western imperialism is not necessarily good.

Think of it as broken clock being right twice a day. Think of it however you need to. Russia needs to lose in Ukraine. And if that means the west gets a propaganda "win", that sucks but just deal with it. Western countries getting egg on their faces isn't worth letting Russia rape, murder, and steal.