The people who were hanging Witches in Old Salem Towne thought they were obedient to God and fighting Satan too! Does that point back to the teachings of The Bible? No! And neither can natural selection identified by Darwin be blamed for the evils of the Holocaust.
To say so denies and attempts to negate the persecutions of the Jews across civilization since the diaspora. Darwin did not invent anti-Semitism! Extreme instances of persecution in history include the German Crusade of 1096, the expulsion from England in 1290, the Spanish Inquisition, the expulsion from Spain in 1492, the expulsion from Portugal in 1497, all long long before Darwin.
I consider it almost criminal to even cast the aspersion, for everyone that attempts to connect Darwin with Hitler is implying that any intelligent and thinking person that accepts evolution also hates Jews. Talk about violating Godwin's Law, this takes the cake!
If Nature does not wish that weaker individuals should mate with the stronger, she wishes even less that a superior race should intermingle with an inferior one; because in such a case all her efforts, throughout hundreds of thousands of years, to establish an evolutionary higher stage of being, may thus be rendered futile. - MEIN KAMPF by Adolf Hitler