John Wilkins is fighting the philosophical and historical fight against the Darwin’s Deadly Legacy nonsense with an excellent summary of the course of the eugenics movement. I especially liked this quote from Dobzhansky:
The eugenical Jeremiahs keep constantly before our eyes the nightmare of human populations accumulating recessive genes that produce pathological effects when homozygous. These prophets of doom seem to be unaware of the fact that wild species in the state of nature fare in this respect no better than man does with all the artificiality of his surroundings, and yet life has not come to an end on this planet. The eschatological cries proclaiming the failure of natural selection to operate in human populations have more to do with political beliefs than with scientific findings.
If you don’t know who Theodosius Dobzhansky was, he was one of the founders of the neo-Darwinian synthesis, and was far, far more influential on evolutionary thinking than either Haeckel or Hitler. Scientific leaders were calling this stuff nonsense before Hitler tried to invoke his Final Solution.