You can't rule the muslims through the Islam and that's what they are trying to do.
Fragony, please. "The Islam" doesn't exist. Let's face it; there's no global Muslim conspiracy waiting to send in groups after groups of bearded and angry-looking men together with their veiled women and their nine children whose pleasures in life consist out of little more than turning the life of autochtonous westerlings into a state of pure misery.

Who were natural allies during the First Crusade? Right, the Fatimids (Shi'ites) and the Byzantine Empire, vs the Seljuks (Sunnites). Like they really cared what kind of denomination you followed, hell, they hardly cared whether you were a Muslim yourself (explaining the expanse of the Coptic Christians who actually fared better under Fatimid rule than they did under Byzantine rule). It's only since about...thirty/fourty years that Islamic fundamentalism has been stirring, and this largely being supported by an amount of western nations (Al-Qaeda vs Russians? Mohammed Mossadeq, 1953, CIA?) in the first place.

Islam is a word that is thrown around, like somehow, the spirit of Muhammed lives still in every single Muslim alive; it doesn't. Actually, it stopped doing so almost immediately after he died: need I remind you of the fact that Ali and Imam Husayn were killed? Need I remind you of the numerous Caliphates? Need I tell you about how the Ummayad family was slaughtered and how Abd al-Rahman fled to Al-Andalus?

Muslims and Islam are as impervious (or perhaps even more impervious) to political, social and economical change as other people. To suggest that there is some sort of hivemind that is shared by Sunnites, Shi'ites, Wahabbis, Alevi, Sufis and all the denomininations is factually incorrect and a good way of scapegoating an enormous amount of people.

The suggestion that "the Islam" exists has no factual basis, whatsoever.

It makes you think whether people have stopped taking an active interest in history.