As to the period in question i.e. about 80 years ago, any reason that our team of usual suspects have not mentioned the millions slaughtered, displaced and imprisoned by that darling of the masses - Joseph Stalin? Whereas Hitler in the mid 1930s had barely got started.

When the Russo-German Non-Aggression Pact was signed, both parties to that agreement knew full well that within the next decade they would be at each others throats (Not only Germans read Herr Hitler's book, the Soviets had had a peak too) for the Germans it had to be before 1944 and for the Soviets it had to be after.