Turns out Darwin was a human being and therefore inconsistent. On the one hand, he was a good Victorian liberal who loathed the chains of the slave. I bet he loved Dickens too.
What remains unsaid in this article is that he was also as much a social Darwinist as Herbert Spencer (who actually coined the phrase “survival of the fittest”) and cheerfully agreed with his cousin Francis Galton about that fascinating new science of applied evolution called “eugenics”.