Until this topic came up I thought conservatives didn't believe in blame shifting.
Nazis infiltrated, co-opted, perverted and used many institutions to further their political aims, and not just the church. Take, for instance, the Bauhaus. They recognized the need to make their propaganda materials not just emotionally compelling, but visually compelling as well. They weren't Christian in thought or deed. They fooled just enough people, just long enough, to consolidate their domination. Then, the horrors of the Reich began. And, what school of thought came to the fore, in implementing their "solution," their industrial genocide? Eugenics, with a straight line back to Darwin.