All of the ones involving different racial groups.
Race - That's pretty limitless. And age - Maturity levels.
That all white people are racist, but I don't think they are.
Anything to do with a Republican being dumb etc... So dumb they control and run so much... must suck big time...
Asians are great martial artists. That's the "biggest" one because there's so many Asians.
Eskimo women have no soul.