^ Isn't one of the reasons why they hate Western culture/values is because they fear it will eventually undermine their own belief system?
Certainly true that almost all kinds of religious fundamentalism are rooted in a sense of faith being threatened by secular forces. In certain cases, including parts of the middle east, this was originally sometimes a justified fear in that some more secular regimes really did repress forms of Islam.
However, what tends to occur is something more - people seek to 'recover' fundamentals of the religion and resolutely defend them. But its usually looking back to a past that never really existed. For one thing, adherents start teading holy texts in a more literal sense that they were previously. For example protestant fundamentalists treat the bible as embodying 'truth' in a way that seeks to compete with or surpass scientific truths. But this is of course ridiculous, and not really how the bible was read previously.