Any science or religion may be perverted to prove a cause or belief. In the New World, Spanish religious figures defined the Indians as homunculi -- a being that appears human, but is not, to justify slavery and worse. The mark of Cain was justified to subject blacks as inferior to others. Both beliefs justified in the name of religion.
Madame Blavotsky, founder of Theosophy, predicted the coming of a superior aryan race that led to the NSDAP and the horrors that unleashed upon the world. Incidentally, Helen Keller became a believer in Theosophy and Lenin used some of its tenets in his brand of Marxism.
The communist used Darwin to support the rise of the new soviet man. But, only ended up producing many more of the old Russians drunks.
The Catholic church for all it dogma is quite at home with Darwin and his theory. With the new mapping of the human genome, we know there is only about 0.1 percent difference in the difference races DNA. Rather humbling to all those goose steppers and the shaven head bunch or the black muslims or the Hindutva for that matter.