regardless, these states[emphasis mine] did engage in genocide against dissidents and minorities, which you cannot deny.
I don’t deny it, I just disagree that those actions are attributable to the economic system. The economic system of communism is fine, it’s the marxist conception of the intelligentsia seizing the state and establishing a “dictatorship of the proletariat” that leads to problems. The responsible party for genocide is the state that carried it out, not communism. If not in the name of communism, they would have done so in the name of some other belief system.
Except they did do it for the sake of communism; it’s in their own wording.
The US invaded Iraq for the sake of “democracy,” in their own words. Did “democracy” kill all those Iraqis, or did the US government?
Edit: changed “freedom and liberty” to “democracy” for better clarity and accuracy.
Freedom and liberty isn’t an economic system that requires the previous system to die.