Most of the negative stuff is either jokes that haven’t aged well…

"I hate Indians. They are a beastly people with a beastly religion. The famine was their own fault for breeding like rabbits."

or unapologetic support for imperialism, both of which were much more common at the time.

You think the people suffering from imperialism supported it?

that quote still actually applies if you accommodate the fact that he didn’t actually count Indians as human beings