James, they are badguys BECAUSE of "their religion".
Their "religion" is _more_ than mere religion, as we of The West regard religion to be. It is an all-encompassing theocracy which seeks to control not only one's religious beliefs, but worldly behavior. And it tolerates NO non-believers or dissenters.
One of the most famous dictums of The Bible is the refrain that we must "render unto Caesar what is Caesars, and unto God that which is God's". This makes a clear distinction between our material world of existence, and the afterworld promised to come.
Islam MAKES NO SUCH DISTINCTION. To Islam, the world of "Caeser" (read: "Mohammed", the worldly prophet) and "God" are inseparable, one and the same. To live under Islam is to live under Mohammmed. It's his way or "the highway". But - there is no highway in Islam. What do they do with dissenters and openly displayed symbols of Christianity in Saudi Arabia?
So long as Islam exists, there are going to be more and more of your "badguys". And hundreds of millions who either openly support them or, silently, accede.
- John