Aha now that is an interesting question and I'm glad you asked. I know that I personally would feel responsible if I saw collectivism murdering yet another society and did not call it out for what it is. If I for example saw that people were dying of lead poisoning but instead blamed evil spirits then clearly I would be responsible for mass poisoning.

"Agree with me or you're among history's greatest villains" is neither a novel nor persuasive rhetorical strategy. You should try a different approach.

I in turn don't find an attempt at a straw man all that convincing.