I think the real problem comes down to some 6+ billion people who each have their own personal standards of what funny or not to them and whats an insult or not to them.
I dont see how any one can make a standard of whats acceptable or not for any one but themselves.
I find it strange that so many people will readily accept and use an attitude of 'its not my responsibility' for so many things that are in fact their responsibility yet they feel the need to impose their beliefs of whats right, wrong, funny, or insulting onto others who openly do not feel the same way.
Crime and death rates go up in their neighbor hoods yet people feel its not their responsibility to report the bad guys they know about to the authorities. But yet they have no problems or hesitation to take on the personal responsibility to report or judge someone for what or who they commented about in regards to someone else's beliefs or sense of what that person thinks is funny or not.
For what its worth spend your hypocritical time chasing down the drug dealers, thugs, crooked businessmen, corrupt officials and general scum bags that are causing real problems in your community and do something about them and let the 'A Jew, a priest, and a duck walk into a bar' Jokes run rampant!