Many white nationalists claim that Darwinism directly supports their ideology, because they think that races have evolved to different levels.
This study does not provide an adequate explanation as to why belief in evolution would cause one to be less racist. Indeed, the logic seems backwards.
The overlapping categories of neo-Nazis, white nationalists, and alt-right proponents regularly invoke Darwinism.
The authors considered human evolution especially important, because they believed it supported their vision of racial inequality.
Racism was not just an incidental part of Darwin’s evolutionary theory. Rather Darwin considered racial inequality crucial evidence for his theory.