The "Khalifah" needs killin'!
I can only imagine the hellish and depraved world these people would subject us to if they ever did what they plan to do. A perfect example are the giant prisons camps that pass for countries in places where the govrnment is run by this evil religion.
Just look at what they do to people in the countries they do run, that's what they would do in any place where they have control.
Good thing they don't have anything but sand, due to their unbelieveable corruption and savagery, and they will never be able to be more than a fly buzzing around in the face of the west. They cannot stop killing each other long enough to really focus on killing us. That's actually a good thing.