Actually, you can take the idea and use it to justify eugenics. Not that I think most people who believe in evolution or Darwin's theory do that.
suise
Yeah. You could. You can also do so with creationist ideas. In fact the Nazis did exactly this. Nazi doctrine was that the races had originally been created with unique "racial souls," and that these were carried in "the blood" of the race. Nazi eugenics was basically an attempt to purify "the blood" and thereby the "racial soul," and thereby restore the state of the original creation and The Creator's intent.
See for instance, Alfred Rosenberg's The Myth of the Twentieth Century, one of the most complete statements of Nazi race theory.
Thanks..........I'll look further into eugenics.