Christianity and Islam, hand in hand extremism

[abaris]

False.
Powerful Religious organizations have killed those who threatened their power, which is against "Christian" teaching. Was not Jesus killed by the Jewish priests?

And how's that different to the Islamic world?

Not at all, it's only an uninformed no true scottsman argument. Yes, and what about the Vatican? Do your history homework, will you? Right now it's confined within a square mile without holding any political power outside that reservation. But that wasn't always the case and things looked different back then.