He was (is?) such an equal opoprtunity comedian: most of his best Chappelle's Show episodes either dealt with basic human nature (like 'The Internet Is A Nasty Place,' or whatever it was titled) or shotgunned multiple different social/ethnic groups on the exact same playing field (the one where he demonstrated which types of music made black, white, or latino people go nuts was side-splitting; his 'Racial Draft' episode was gut-busting; his 'Reparations' skit was equally hilarious, though it focused predominantly on black people with white people commentating more or less from the sidelines--where Chappelle himself was in white-face).
Sorry for the rant, haha. I've written short essays on this very subject (my old computer died so I haven't pulled all the old material off its hard drive) but I basically concur with the above sentiments: the best humor is humor that pokes fun at basic human nature/tendencies, while the worst humor is strictly partisan and, as a fundamental component, requires the audience to divide into an 'us vs. them' mentality. It can all be funny (so can pure physical comedy) but the *best* stuff makes everyone equally amused and introspective, without any of the hamfisted bludgeon-the-audience-over-the-head nonsense that suffuses too much of contemporary 'comedy.'