I have a different take. Christianity was just as bad at one time--during the Middle Ages. The crusades were basically a criminal rampage. Slaughtering innocent Jews, burning women, torturing heretics, etc. etc. Now they're not. There was a difference in their history. Revolutions in France and the U.S., gradual change in other European countries secularized Christianity and got it under control. With separation of church and state, the religion can no longer run rampant in its criminal tendencies.
If not for secular authorities, priests would still be raping boys and being protected by the church. What keeps religious authorities from turning into criminal regimes is secularization.
What I'm saying is, I think the problem is theocracy. In more secular states, such as Turkey and Indonesia, these types of actions are curtailed by the state.
In other words, the base problem is religion. Due to history, the Christian religion is held in check, Islam less so.