No, it's called science fiction. My recommendation...
"Codgerspace" (1992) by Alan Dean Foster. In the post-oil future, the various factions of humanity have left Earth to colonize the galaxy on their own. Some individuals return to Earth in their twilight years for their retirement.
Nazism is about the domination of the mythic Aryan. The paranoia of such a murderous master race ideology will drive it to dominate and enslave other people (human or alien).
Video recommendation: "Mr. Death: The Rise and Fall of Fred A. Leuchter, Jr." (2000) by documentarian Errol Morris.
