Islam is a menace to civilized society. So many interpretations of it are of a religion of violence, hate, and oppression. Islam is also responsible for more conquest than anything else in human history. Yes, even the British: while Islamic countries weren't as successful at colonization than the British due to inferior technology, they tried a lot harder and were much more brutal about it. Indeed, the Crusades were actually a morally righteous response to Islamic conquests. The Crusaders were protecting Europe from getting wiped out by Islamic nutjobs who would have invaded Europe entirely if given a chance.

Violent interpretations of Islam should not be tolerated in civilized society. Unfortunately, that's most interpretations.