They get upset, but the body count is much much lower. Comedians, artists and random ass people do all kinds of crazy shit to the Christian deity, you may see a protest but you're unlikely to see people get killed for it.
First off, fuck the pope. I don't even know why priests are supposed to be celibate in the first place. Second, priests aren't the incarnation of god on Earth, and they're not prophets. Priests with normal and abnormal human failings aren't the example for how all humans are supposed to act. The Islamic prophet is the ideal example of how to live for billions of people, and he fucked a 9 year old. Can you take a wild guess at the legal age of marriage in many Islamic countries?