Islam's theological/philosophical enemy isn't the Calvary Baptist Church.
It's the brothels of Amsterdam. You see, the Qur'an has a soft spot for "People of The Book," (i.e., the Bible). But the modernist, secular West is the infidel, the absolute enemy.
Tag, you're it. The Prophet Muhammad started out and made his rep by fighting and conquering the pagans of Mecca, not the Christians. Or the Jews, either. You could look it up.
Which is why anti-religionist Christopher Hitchens, if I may use a dirty word, argues that it's secularists who should most be alarmed by the Islamist threat. Remember that many of the 9-11ers were educated in the West, and saw (what they viewed as) its depravity first-hand. They became convinced that such an empty society a) lacked the will to defend itself and b) deserves to fall. They have met the enemy, and they've decided it's you.
Sure, Islamism is also political: Usama bin Laden's 1996 fatwa/recruiting ad was based on the Iraq sanctions that killed innocent women and children, and also on the crusader (read US/UK) military presence in Saudi Arabia, which was there solely to keep an eye on Saddam.
Well, our crusader-in-chief and his neo-con puppeteers took care of both those bones of contention, n'est ce-pas? Sanctions mooted, troops out of the Land of Two Holy Places. A military presence in Iraq with one foot out the door hardly qualifies as a casus belli now, let alone cause for a whole damn worldwide jihad. Islamism has historically been far more patient at such passing indignities. It sees history in terms of eras, not election cycles.
American narcissism tends to place us, for better or ill (and mostly the latter these days), at the center of humanity's universe: surely we are the only big stick behind the West, with a little help from the UK. And surely our mastery of mass media (Hollywood, CNN) makes us appear to be the biggest of dogs in the current age. But the sins of colonialism and of contemporary moral squalor are largely European: the US is a country geographically far far away from Islamism---more an image than a reality to them. We are not (as of yet) morally fallen, and we were only silent partners or minor participants in the divvying up of the Third World in the colonial period of 1850-1950.
Have I mentioned that I don't like Europe? Not for back then, not now. I understand completely why nobody likes "white people." I don't like 'em much myself. Not only the sins of our European fathers but their children's today are visited upon us, their distant cousins in the United States.
To our beloved infidels, who are indistinguishable from the modern philosophical Left who dominate the Old Country: word up. You can wash your hands and stick the blame for the world situation on Queen Isabella, Napoleon, Admiral Nelson, Lord Balfour, Roosevelt, Churchill, deGaulle, Nixon, Reagan, or a Bush or two.
But the bell tolls for thee, not me. I can pay the dhimmi tax, and they'll leave me alone, as a good-hearted albeit confused person of The Book. But you're toast. Doomed.
So we shall hang together or hang separately, it seems. I will die, if I must, for Cindy Sheehan, or even for Hugh Hefner. Will you die for Pat Robertson? For me? The fate of the West depends on your answer.