Yeah, has some bad takes in places and there should be some judicious rewrites to the dialogue, but it isn't particularly racist and I wouldn't call Mark "Knife a Romanoff wherever you find him" Twain racist.

He had a leading role in breaking to the public what was going on in the Congo Free State. He was pretty much the only public figure against the Philippines annexation. He paid for African-Americans to go to Yale from his own pocket. He was in general one of the least racist people of his time, despite (or because of) growing up in the antebellum south