I think what people often don't like to face about religion is that it can and does adapt to conditions.
I recommend finding if you can an essay by Rodney Stark called "How New Religions Succeed: A Theoretical Model". It's just a beginning for such research but it looks into what I would call the marketing of religion.
People switch to new religions when old religions don't work and when new religions can promise more, amongst other criteria.

Fundies are the old religion trying to gain dominance over adaptive elements. It stands to reason that they see a strong threat that Western influence can change their religion. And likely it will.
A change in environment will make Islam as it is known today by fundies useless. Thus it will be reformed. And the old masters will try to use coercion to make the adaptation seem more expensive... but they will not be able to stop reality...
Unless they manage to change the direction of the global change. Thus terrorism.

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"Man lives in the sunlit world of that which he believes to be reality. But unseen by most is an underworld, a place that is just as real... but not as brightly lit... A DARK SIDE!"
-opening from Tales From the Darkside