It seems you know what I'm thinking better than me. I have categorically not argued it's invalid for you to consider these regimes communist.

How, exactly, is it you imagine this is a "No true Scotsman"?

What I have argued is, if anything, that there are lots of Scotsmen, and trying to reduce them all to one is meaninglessly reductive.

In other words, I've indirectly explicitly argued against No true Scotsman.