This movie (Expelled!) attempts to link evolution to Nazism. Nevermind that he was a creationist:

"Hence today I believe that I am acting in accordance with the will of the Almighty Creator: by defending myself against the Jew, I am fighting for the work of the Lord." - Hitler, Ibid, Volume 1, Chapter 2

He used his belief in God as a justification for his genocide.

Do not mistake me - I do not believe that religion was the cause of his genocide, any more than his ridiculous ideas of social darwinism were 'caused' by evolution.

Religion, while it may have been used as a justification, was not necessarily the cause.

He was an evil person who happened to be religious. He was likely not an evil person because he was religious.

However, to claim that evolution was the source of his reasoning for eugenics is to ignore that he was a creationist, and his ideas of 'social darwinism' had more in common with Martin Luther's "Final Plan" than any reasonable interpretation of the theory of evolution.

Stating that things are one way is in no way endorsing that we should base our plans to promote that - it is a cold hard fact that those that do not survive to breed do not do so, but that doesn't mean that we should cause this.