He was a right-wing populist that wanted to do "socialism" for the superior German race by enslaving Slavs etc. He actually hated the Soviet Union precisely because it was socialist. In fact Nazism actually means "Nationalist Socialism" = Nazism, which is not the "Socialism" of the soviets, but a right-wing, one race owns everything ideology, which is precisely why Nazism is a separate ideology.
The fact that this is believed by some is disgraceful.