Earlier quoted context omitted.
Like most comedians who swear... Well, and then there's guys like Carlin and Hicks and Pryor and Rock who swear a lot and yet are the funniest people on planet.
Absolutely. But I'm skeptical that most comedians are like Carlin and Hicks and Pryor and Rock. For every Carlin who could craft the use of "fuck", there are three who think "motherfucker" is a hot-wire to the funny bone.
It's probably one of the most intrinsically ugly words in the language. Racial slurs are ugly because of what they represent-- hideous and unacceptable attitudes held against innocent people, based in prejudice and ignorance-- but not on account of composition, because they're usually atomic words. These words become extremely offensive once one knows their meanings, but beforehand hold no special currency. By contrast, "M~" is a compound of two well-known and fairly innocuous words-- one completely acceptable, one edgy but mostly inoffensive-- that instantly makes the skin of even most liberal people crawl, even before its semantic subtleties are explored.