When someone makes a career out of insulting others, whether he or she is a comedian, an actor, an author, a blogger, or whatever else, there is always a risk that he or she will eventually get around to insulting you or one of the groups with which you identify (for countless examples, see South Park). If this happens, outrage is a tempting reaction.
Should you find yourself feeling outraged in such a situation, I'd encourage you to consider something that might not have occurred to you:
If it was previously okay for this person to insult those with whom you disagree (e.g., your political opponents, religious believers) and if you laughed along with them as they did so, your outrage might be just a bit hypocritical.Perhaps, and I'm just throwing this out there for your consideration, the problem is not that this person is now insulting you or a group with which you identify. Perhaps the problem is that he or she has made a career out of insulting others and you have helped to make this possible. Insulting others and laughing about it probably shouldn't be condoned unless you are willing to take your turn as the target of the insults.