You’re still not explaining how to avoid all three. With any one of them, the poison of authoritarianism still persists. How do we expunge that poison outright?! Because as the USSR (from Lenin onwards, thank you) and China evince, Communism isn’t exactly authoritarianism-proof.
(Just to make sure, we are agreed that authoritarianism is inherently evil, yes? Whether claimed to be for the elite, for the gestalt nation, or for the workers. Especially when that authoritarianism helps succor genocidal goals, like with China trying to extinguish Uighur culture as a whole, or the USSR trying to de-nomadic the Chukchi, and thus shatter a massive chunk of their culture, or the myriad cases of the United States betraying the Indigenous treaties.)