> where "everybody" resisted their yoke was to kill off everybody
and okay, the everybody is in quotation marks. Which indicates that this doesn't mean 100%. But how much is "everybody"? If he doesn't owe us a proof for that claim, he owes us a clarification.
In some soviet satellite states, the soviet occupation zones killed way less than 100% who resisted. There are studies that in East Germany about those early opponents to the socialist systems (e.g. to the seizing of capital, farmers land, the cleansing of the universities and schools etc). They took 100% of the opponents in custody. And a good amount of non-opponents, there was no real proof of guilty needed. About 30% of the people of the inmates died in those 4 years of soviet occupation.
To me, this is certainly not "where EVERYBODY resisted their yoke was to KILL off everybody". But it was still cruel, still a stalinist forced occupation, a theft of an extremely large scale.
And so, if someone states such a general stand ... he would have to go forward with proofs. And that's a question of science, logical reasoning. Not if your political stance is extremist left or not.