They’re telling us what they plan to do. Sane countries would deport them immediately.
If the Nazis in America had the savvy to declare themselves a religion, we would have had a hell of a problem on our hands when WWII broke out. As it were, the American Nazis were rounded up and held until the end of the war.
If the CIA is unaware of what is going on inside of radical mosques here in the US, we're toast.