You need to do more homework on the religion, on other religions and how it all fits together. There are radicals in all religions, it is just easier to pick on the Muslims for some reason - way too many to discuss at present.
I agree with sync all organized religions have crazies.. and nuts who sell their BS religions to silly people who believe like sheep.. it's not only Islam. That's why I am spiritual not religious.. I only believe in ME and in a higher power but not through the false religions of an Imam a Rabbi or a priest.