There are 21 pages of comments on a blog essay written by author Disesh D'Souza to answer the question, "Was Hitler a Christian?": http://news.aol.com/newsbloggers/2007/11/01/was-hitler-a-christian/ It is an excellent polemic against the bizarre claims of Darwinian atheists (Hitchens, et al) who want to chalk up the crimes of Hitler to religion--Christianity, of all things. The whole attack is backfiring, since it practically invites people to examine the real intellectual roots of Nazism.
Of course you can find Hitler propaganda quotes--especially in his early political career--posturing in defense of Christianity, but his whole record runs against it. As for those who want to credit the Spanish Inquisition with inspiring Hitler, forget it. The complete death list of people ever burned at the stake for heresy would not have equalled the number of people killed by the Nazis on slow day at Auschwitz.
Let this debate continue, by all means. Historian Richard Weikart's resource book, From Darwin to Hitler, is totally authoritative and scholarly, unlike the ramblings of Hitchens, Harris, et al. As for D'Souza, following Weikart, he is not claiming that Darwin and Nietszche would have been Nazi admirers, only, as he says, that the Nazis definitely admired Darwin and Nietszche.