Newt Gingrich actually said...

They believe that Islamic law is superior to all other law, and that the rest of us ultimately have to basically yield to Islamic law.

It is explicitly religiously motivated. That doesn't mean that every Muslim is bad.

To start with that notion--I mean, this whole idiocy that you can't talk honestly about the nature of the people who are trying to kill you ...

Radical Sunni behavior is our mortal enemy.