The funniest racism is the racism between minorities. It's something you don't see dramatized, but almost every minority I know who's my age, they have these funny stories about their parents stereotyping other minorities.
My ancestors were all Freethinkers, formerly Catholics. It was science and Darwin, in particular, that made them decide, as educated people, which they were, that the priest, nice as he was, didn't know what he was talking about.