Wow a commie who doesnt know history, not surprising. Firstly I never said USSR didnt know what Germany was doing, I said they didnt care. This is backed up by history. Yes Hitler hated the soviets and they probably disliked him to but they tolerated him and his crimes against humanity enough to form an alliance and work together. A little timeline of events to refresh your memory: 1939 USSR signs a non aggression pact with Germany. This pact includes plans to divide eastern europe between USSR and Germany, a clause that prevents the USSR from allying or aiding enemies of Germany. Shortly after Germany and the USSR double team Poland and split it up between them. After Stalin used the attack to capture a few eastern european countries he asked to join the Axis powers treaty. Stalin was warned multiple times that Germany was preparing to backstab him but rejected the warnings as he thought they were so allies. After it was confirm that Hitler had betrayed him he spent several days sulking in his holiday house refusing to communicate with his generals.

There is no way you can reasonably say that USSR disapproved of Hitlers action and Ideology. The only thing he would have had an issue with is that Hitler hated slavic people. He was even willing to put that aside because they both had authoritarianism in common.