Quote Originally Posted by Wikipedia
In law, hate speech is any speech, gesture or conduct, writing, or display which is forbidden because it may incite violence or prejudicial action against or by a protected individual or group, or because it disparages or intimidates a protected individual or group.
Bill Maher mocks an entire religion and it's followers and tells them they're not going to heaven because it doesn't exist = A-O.K.

Phil Robertson says he doesn't believe that homosexuals will go to heaven because his religion tells him so = Hate speech.

Seems fair.

Just because you disagree with one of them doesn't make it hate speech.