So why decide to insult one giant group of people who didn't threaten anyone (all the Muslims that didn't send out death threats) instead of another (all the Christians that didn't send out death threats)?
A more accurate analogy would be like blowing up one bad guy and the blast knocking the hats off some nearby good guys. They might get mortally offended that you knocked their hats off, but they should get over themselves. There are more important things to worry about in life.