it's okay to be politically incorrect at home with your family and friends

Shouldn't we have greater leeway than that, such as comedy night clubs, for instance? Do we really want our movies and books to be scrubbed for only the most sensitive expressions? Surely, some of the Internet should be free-speech fire zones. Though, I appreciate that, on the Internet, we have enough forums that go way over any generally accepted lines - the true hate stuff. But, in priniciple.