>>4
The people doing it call themselves "democratic socialists" and "Marxist-Leninists." Argue with them about the label.
More important, though, is that Marxism is contrary to human nature. It ignores the fact that human beings are instinctively, inherently, naturally tribal and territorial. It ignores the truths of blood and soil. If you aren't starting from the perspective that your racial kin are your extended family, then you're the politico-economic version of the Flat Earth Society.
Only an ethnostate can have legitimacy and no other form of political organization can represent a people. In an ethnostate, how the economy is run and how the administrators are selected are the most trivial details.