Hitler’s cat’s-paw Himmler dabbled in Odin-worship & praising the Nordic gods of Wagnerian legend, and even tried to establish a “National Reich Church”.
But except for a handful of hardcore SS-Totenkopf & their `temple’ at Schloss Wewelsburg, the notion of a Nazi “religion” was a joke to Germans.
Hitler was an atheist. How do you create something from nothingness?
You make it a death penalty offense to insult the new Nazi religion. That did the trick for Islam. Cuts the dissident movement down like mown grass, and it never grows back.