Are you also against socialism because Hitler called himself a socialist?
Countries like those you named never had actual communism, just like Hitler wasn't a real socialist. What he and the others did - authoritarianism and dictatorship, are contradictory on the most basic levels to communism and socialism (both are about equity and equality, something that cannot exist if there is a ruling class. Leftist economics cannot exist with anything but leftist values, anything else is inherently incompatible).
Do yourself a favour and unlearn some of the anti-communist propaganda you've been socialised with.
There is good reason we call tankies tankies and not communists.
Edit to add: The right has always and continues to co-opt leftist ideas to get in to power, because leftist ideas are actually the popular ones, the problem is when one person or a small group have power, many start off doing it deliberately to get in to power and then abuse it, while others have good intentions but are corrupted by the power they end up with, but either way, once power is centralised in such a way, it is a lot harder to get rid of (it also allows those in power to dictate via the media and the "justice" system who the "in" and "out" groups are to give the people someone to blame that isn't them).
That's where anarchism comes in with its ideas of horizontal organisation (I'll admit I've only skimmed this, so I don't guarantee it's the best source, but that library is a good place to look these things up anyway) which doesn't really give any one individual enough power for them to be able to fuck others over with it.
Anyway, I've mostly taken the time because I've seen you around (not in a creepy way, some avatars just become recognisable after a while) and you seem like you generally "get it" so I'm hoping you're near enough the edge that I can give you the push you need to join us on the dark side 🏴(black is the anarchism flag) (this isn't meant to be as sinister, or condescending? sounding as it came out lol sorry!)