Airmann,
if you're a muslim please watch out your mouth because you making a lot of bad judgement about people you don't even know, as far as I know Allah didn't give you the power of knowing what is inside the heart of people, so please instead of mentionning things like those people are extremists and so go back to the basics of islam and learn what is the good behavior in islam because you are very far from it, no offense but reading you talking about islam shows how deep is your lack of knowledge you even give me the feeling of a guy with an inferiority complex who need to justify that's he's a good muslim and the others the extremists.
All the best for the rest of your career