ISIS is islam in all its gory detail. Muslims all over the world get up in arms, and riot over as much as a pencil drawing of their bloody prophet, but are entirely silent over the atrocities performed by IS in the name of their religion. Therefor I conclude that they all to some degree agree with the methods of IS.
There's a recent video on Youtube, where Brigitte Gabriel puts it plain and simple; The Peaceful Majority is Irrelevant. Look it up.
Islam is the worst cancer ever to come to humanity.