please, RAW was 1987. its been 20 years, plenty of other comedians are offensive, vulgar, and racist and know how to make people laugh. (chappelle, louis ck, etc) But then you have these people who try and ride the coattails of that success being painfully obvious in their humor/vulgarity. Its the way that people like sarah silverman and carlos mencia deliver their material. shes only given a show for the same reason he is, because she'll say whatever she can for shock value. Look at where else shes been with her career in the last decade, a B-movie actress (if you even want to give her B) playing the gf of someone in a movie with like 5 lines (for good reason). nothing she is doing is revolutionary to comedy.She's funny. Not Always, but She does have some funny bits. She just needs to tone it or change the focus a bit. There's dozens of comedians who are a one joke act (andrew dice clay anyone?) but she could be a much more devastating, but only if she evolves. Otherwise, she'll become a joke onto herself.
Give it five years and see what happens. (don't forget the outrage that eddie murphy caused with his Raw video, or Sam Kinison....people were shocked by their subjects and 'in your face' style, but now their work is considered 'classic')
end of my .02