“At some future period, not very distant as measured by centuries, the civilised races of man will almost certainly exterminate, and replace, the savage races throughout the world. At the same time the anthropomorphous apes, as Professor Schaafhausen has remarked, will no doubt be exterminated. The break between man and his meanest allies will be wider, for it will intervene between man in a more civilised state, as we may hope, even than the Caucasian, and some ape as low as a baboon, instead of as now between the negro or Australian and the gorilla.”

The Descent of Man: And Selection in Relation to Sex
Part I, Page 156, April 1867; Anthropological Review
Author: Charles Darwin

Yes, he’s very respectful in his opinion of the “negro” as it relates to baboons.