Every time somebody criticises Islam they meet with the predictable response that "ordinary Muslims are not like that", whatever "that" is in the context.
It is my conclusion that well-meaning western liberals confuse lapsed Muslims with normal mainstream Muslims. In the same way that if you heard somebody say that they know a nice JW guy who gets drunk, smokes, goes clubbing and has one-night stands, you would conclude that they know nothing about JWs.
If you take a few minutes to watch this video published by the pro-Islam Norwegian website IslamNet.no you will hear normal Muslims speak for themselves about what is and isn't radical or extreme.
It was filmed during a q&a session at a Sunni conference.