Yes, that IS where the problem lies. But until the radical portion of Islam is excised by killing them all, it isn’t going to change.
But, IMO, all of islam is the problem. I haven’t fought them on the field of battle, but I spent some time in Egypt and got a good look. IMO, islam is a huge millstone around the necks of those people. They would be so much better with it off. The only thing that will bring about change is change. The islamites don’t allow for change. To them, it is “my way, or the die way”.