Any "Christian" sympathies in Nazi Germany were more or less on an individual/ personal basis. The regime or Nazi governmental organization only was interested in Christianity's usefulness to the state and how it could be re-formed into something the state could control and benefit from. The party was interested in religion only in that it could use the churches as tools of the state to further the goals of the state. Playing on religious themes and sympathies to control and inspire people towards the party but in reality, not particularly religious at all. There was a lot of religious persecution of Christians that you don't read about in the history books. There weren’t just Jews in those camps.
Himmler tried to elevate Nazism to a religious level with his incorporation of Norse mythology. I don't think it was widely accepted but it was a deliberate attempt to make Nazism more than just a political philosophy to the average German. To him, the merging of the party's political ideas into a religion was a very important and powerful thing. Luckily I think, he met resistance from some in the party who were either atheists or purely interested in keeping it just about the politics. I sometimes wonder if Hitler had waited and not gone into Poland, or if the west had let him just have it and not gone to all out general war in Europe, would the Nazis have been able to manufacture a religion out of their ideas where the Reich and German superiority were seen by the average German as being divinely inspired in some way. Making the Reich into the church. This would have taken a little time but maybe not as long as one might think. This could have made the war harder to win for us if it had been successful.