Yes that actually the key difference. We willingly enter those communist dictatorships and we are not prisoners there but can leave.
That is fundamentally different than a place like a communist dictatorship country, which builds walls to turn itself into a prison.
Being willing to enter and able to leave a dictatorship makes it a whole different thing than a dictatorship you are born into, and cannot leave.
Consent is everything. Like, a person can tie you up, beat you with a whip, pour hot wax on your skin to burn you, and put clothes pins on your nipples, and it’s okay as long as there’s consent. That is, objectively, a bad way to treat someone. But consent changes everything.
And it goes the other way too. Helping a person without their consent is wrong. This is the problem with a lot of the social movements these days: not seeking consent from those they seek to help.