Which is kinda what typically happens OTL, e.g. Holodomor, Great Chinese Famine and the Cambodian genocide, just to mention the top 3.
Daniel Goldhagen, who has written extensively about the Holocaust, wrote in his book on genocide that 20th century communist regimes "
have killed more people than any other regime type." Stephen Kotkin estimated the total OTL death toll from OTL Communist genocides was some 65m from "
mass deportations, forced labor camps and police-state terror", which puts him in the lower middle of the estimates, which range from 20m to 148m.
The surprising thing is, that despite the overwhelming evidence and consensus among acknowledged scholars, many people still deny that Communism is inherently genocidal or indeed that any genocide happened, which is puzzling on a pathological level.
On this site, you can easily find comments like "Stalin had good intentions", "the people loved Castro" or "the dust bowl was just as bad as the great leap forward". You don't find comments like "Hitler had good intentions", "the people loved Mussolini" or "the ww2 Japanese internment camps were just as bad as the Nazi concentration camps" with the same frequency or indeed at all.