So I take it that you're unaware that Hitler was a fanboy of Western novels and used the US expansion to the West in general as one of his favorite metaphors? The Nazis did have to have a reason for wanting to commit one of the largest-scale slaughters in all of history more sophisticated than "murder is good", but that doesn't mean that their ultimate geopolitical structure was that murder was good. The Soviets were smarter: they did their mass murders behind closed doors and either denied them or ensured Nazis were punished for them instead.