Slavery was banned in England in 1833-34, Parliament passage and Royal Assent.
Though Darwin return in 1836, he left on the Beagle in 1831. Slavery was legal. Darwin and evolution are thus canceled. It was only a theory anyway. Besides, Darwin believed whites, particularly white Europeans, superior due to evolution.
Does this mean we have to rename Snoopy? After all, Darwin the racist sailed on a ship called The Beagle.