They did not mass murder the Polish, nor did they intentionally starve Ukrainians. Both of those claims are highly inaccurate, the Nazis exterminated the Polish and the 1930s famine was unintended and tragic.

Further, your claims about the prison system are highly distorted in quantity and quality, they in no way compared to the industrial mass murder machines in Nazi Germany. Read Russian Justice.

Communism is about uplifting the working class, not worship of the state.