[irrational]

I don’t think that is true. Russia has shown themselves to be a bad actor, like early 1900s Germany and Japan.

[marsa]

shown themselves to you maybe, but have in mind that post 1945 plenty of couped/invaded countries around the world could come up with a convincing case painting US as a bad actor too

this is where you should search for nuance and complexity, whereas dropping a-bombs on civilians is a clear cut case of an immoral act no matter how many lives it supposedly saves