Quote Stalin all you want, but his word isn't gospel, especially when he himself later allied with nations that would (at best) fall under his "moderate wing of fascism" umbrella. The CPC's line on Stalin is something like 70% good, 30% bad, so there's plenty of room for disagreement.

I'm not overly concerned with optics on this site, but what we meme about here pops up elsewhere, and if we want people to agree with us we do have to put thought into how to present our ideas.