[John Valentine]

BS concocted on the spot for the purpose of killing people or stealing their businesses. It's a "con".

You have just described the origins of Islam.

[muawiyah]

Naw, Islam wasn't concocted to provide an excuse for killing people. The Arabs in Mecca and Medina had a reputation for that going all the way back as far as history has known of them.

Doesn't mean you won't find Moslems who use their interpretations of the Koran as an excuse to kill of course.