I find him fairly funny.. I didn't like his show, but his first two stand up routines were very funny in my opionion. His third.. meh.. Now I wonder if the people that like him are over 30? That would have been a better part of the question. If you find him funny, what age group are you in.
As for his routine being racist.. geez.. what comic doesn't have topics that are sexist or racist in someway. Any joke could offend someone. Chappelle, freaking hilareous but infused race into his humor, Foxworthy, was all about redneck humor, Carlin was all about being dirty. My favorite comedy right now is from Tosh.O, but half his stuff is stereotyping offensive. I mean even Jim Gaffigan offends bacon and hotpocket lovers!!