Do Atheists know that Evolution lead to Racism?

Hitler was an off the scale nut job, unfortunately most of the nazi's, without whom he would not have been able to carry out his m murdering, were practicing Christians. I would like to know what their 'excuse' was. Evolution does not lead to racism, any one with a racist agenda can use text an warp it to fit their ideology. The KKK are very religious, and use text from the Bible to support their warped view of mankind. Hitler was raised a Catholic, btw.