The religion of Islam is only being used as ideological propaganda to support the Arabic rulers' ambitions. I don't see that. In fact, what's noticable about modern Islam, and why we're having problems now, when we haven't for so many years, is the idea, created by Sayyid Qutb, that the Arab rulers were the enemy, as well as the West.
Osama, et al., are out to rid the Arab world of its current leadership, fully as much as they are out to destroy the West.
The Islamic terrorist groups were and are being cultivated and funded by Middle Eastern governments seeking political control, a counterweight to the military dominance of the West. The problem is that the religious nature of the groups' political ideology has turned people like bin Laden (hasn't "been LaidIn" a long time) against their former sponsors. So the Saudi's Wahhabism has come back to bite them in the ass.
Look, my main point is that a lot of people here are confusing political ideology with religion. Sure, the radical Islam ("Islamism") has a religious form, but I really don't see how our present conflict is about theological differences. It just isn't. It's purely geopolitics.