How is it any different from saying “Americans” do such and such when their representatives say awful things? We know that there are American comrades, and we know that there are likely a great number more comrades in Ukraine. I really don’t think the post was meant to disparage all Ukrainians. Just the ones that support what their representatives are saying.
Lemmy ate my reply. But the short version is that I actually do mostly agree with you. I try not do this myself, but it is linguistically difficult to speak more narrowly about the Nazis in Ukraine. I just think it’s a wee bit of a stretch to assume that the comment you referenced actually refers to all Ukrainians.