Also, there was no effort to dezombify the Russian population.
I read recently that only in the 60s the German public opinion started moving towards "Nazis are bad", and that was because of an external effort to reeducate them (I had just assumed that after they lost the war, the population would automatically see the Nazis were bad).
No such effort happened with the Russians, so they're still trying to conquer Europe, as they have been since tsarist era.