It isn't because women wear hajibs. It is not because of terrorism. It is not for any of the reasons we often associate with Islam. What is truly evil about Islam is stuff like this:
Two million Muslims are headed to Muzdalifa, Saudi Arabia, to cast stones at the devil in the most dangerous part of the annual hajj pilgrimage, Reuters reported.
Once the Muslim pilgrims get there, they will collect pebbles to throw at walls of the Jamarat Bridge to symbolize the rejection of the devil's temptations.
Two million people throwing pebbles. The enemy rejoices in such petty acts of piety. Pebbles and stones will not defeat nor dissuade the enemy. Nothing but the cross of Christ can overcome Satan.