Consider David Attenborough’s concern with population control. Wallace specifically and vocally denounced the population regulators of his own day.
I’ve read many defenders of Charles Darwin who try to distance him from the eugenics movement.
Biographically speaking, reading Darwin’s Origin was seminal in Stalin’s own march toward a godless communism.
His take on Darwin’s unwitting contribution to 20th-century genocide and mass murder (though certainly unintended) is more right than wrong.
The co-discoverer of natural selection died on the morning of November 7, 1913, at 90 years of age. It was the end of a remarkable career.