I do find that lots of the more edgy comedians are just too savage, brutal and downright nasty for me personally to enjoy.
That's the thing, isn't it? There's definitely an audience, a big audience, for offensive comedy. People like to be shocked when they are laughing. Ricky Gervais is a good example of the mainstream version. Think about the Oscars - a huge international event full of celebs - and the expectation of the host is that they will make rude jokes about them and people will gasp and laugh (or possibly punch Chris Rock).
I went to see Frankie Boyle years ago, back when he was funny on Mock the Week. It was a mistake, tbh. The warm-up act made offensive jokes and warned us, several times, that we hadn't seen anything yet. Frankie came out, was extremely offensive (one joke in particular about Downs Syndrome sticks in the mind), and, imo, was not funny. Interestingly, he lost the audience, got in a bit of a row with an audience member and at the end, essentially stormed off stage. One of Frankie's problems was that he had courted a mainstream audience with his TV appearances and it was the wrong audience for his stage show. I came out thinking 'well, that really wasn't my kind of thing'.
Frankie would have known that show went badly. Sadowitz, on the other hand, thought his show went well, which I think is interesting if it was actually the hotbed of complaints the theatre says it was.
What I also find interesting is that Sadowitz's response sounds hurt. That he doesn't want to upset people and that the suggestion that his show is racist and homophobic is missing the point. I also find it interesting that Jeremy Vine is openly defending him on Twitter, who doesn't seem the sort of person to enjoy going to genuine racist hate shows.
Looking at the Pleasance Fringe brochure, there are several shows on there that make me want to clutch pearls and go all Mary Whitehouse. People being offended by crude, vulgar sex stuff is presumably their issue though, rather than one for the censors.