Not gonna argue with that. USSR was definitely more covert in its ethnic cleansings. Although the Russian polizei collaborators in Eastern Europe (Belarus to be exact) were more than eager to hand in my grandad’s family to the SS. It was actually thanks to an SS officer showing some compassion that he and he his sister managed to evacuate. And some argue that up to 5 million Jews went through Soviet gulags although it’s near impossible to verify.