What a concept. Actually Hitler was very clever at using symbols and rituals but stopped short of declaring Naziism a religion. But in the 30s, we weren't as stupid as we are now, so no, I don't think we would have allowed Nazi temples. Today? Terrorist mosques dot the landscape. Tolerance may be our downfall.
Our de facto "open borders" policy is another example of suicidal ultra tolerance.
Our Italian ally hampered us almost everywhere. For example, he prevented us from employing revolutionary policies in North Africa . . . for our Islamic friends suddenly saw in us voluntary or involuntary accomplices of their opressors. The memory of the barborous reprisals against the Senoussis is still very much alive among them. Moreover, the Duce's ridiculous claim to be regarded as the "sword of Islam" arouses just as much laughter today as it did before the war. This title rightly belongs to Mohammed and to a great conqueror like Omar. Mussolini had it conferred upon himself by a few poor devils whom he paid or terrorized. But we missed that opportunity, like so much else, because of our loyalty to the Italian alliance...-- quoted in Hitler by Joachim C. Fest