Exactly; Just decline and keep 'em moving. No more annoying then kids selling candy, and no more of a reason to listen to them. They shouldn't have to stop their attempts, any more then you should have to let them in.
Other points of view don't see their own hypocrisy, or don't care, either. That statement is not just true of Christians, but for a whoooole lot of groups that may or may not have agendas. Their claims are not untrue. Some groups are practically immune to ridicule (South Park has addressed this very well, and ironically gained real life death threats at even the suggestion of mocking certain groups) while others are openly mocked by those who disagree. There are definitely groups of people that if you make one wrong comment about them, you can lose your livelihood, your career, your reputation, while other groups are completely able to be targetted as a punchline constantly. The disconnect goes both ways..... not just Christian groups are guilty of this one, thats for sure.