This is an interesting point that shouldn't be glossed over. There are more layers than just extremist vs non extremist. Within non extremists they are sympathizers. How many? It's impossible to know, they don't exactly advertise. Consider this example... Pakistan is over 95% Muslim. Officially, the Pakastani gov't and military were opposed to Al Qaeda and Bin Laden. Remember, they were even helping in the hunt for Bin Laden. But fast forward and where was he found? Abbottabad. The military neighborhood where the upper echelon of Pakistani military officers live that borders the Pakistan Military Academy, their equivalent of West Point. I don't consider the Pakastani military to be an extremist group, but I don't think they are strongly opposed to them either. Why? You are welcome to speculate. How do you think Bin Laden came to have a safe house in the middle of the military brass that were looking for him? There were several theories... https://en.wikipedia.org/wiki/Allegations_of_support_system_in_Pakistan_for_Osama_bin_Laden