This thread has no business in IE nor anywhere unless a). it's supposed to be some odd joke [which in itself is off-base given the sociological strains of the times]; or b). it's meant to be a serious discussion by people who have done a heckuva lot of study into what really went on.
If anyone wants to make serious contributions to such a topic which is fraught with potential jerkism, I'll recommend a readings list, as the scholarly basis for the history of the crusades has been laid down for many years.
1). A History of the Crusades, 3 volumes, ed. Kenneth Setton, 1969 --- perhaps the best foundationstone;
2). A History of the Crusades, 3 volumes, Steven Runciman, 1968 --- a close second;
3). 2 books by Jonathan Riley-Smith:
a]. The Knights of St. John in Jerusalem and Cyprus {1050-1310}, 1967; and
b]. The Feudal Nobility and the Kingdom of Jerusalem {1174-1277}, 1973.
4). The Sundered Cross: the Story of the Fourth Crusade, Ernle Bradford, 1967.
5). Arab Historians of the Crusades, ed. Francesco Gabrielli, 1957.
I haven't read all these thoroughly, but have done so moderately well. It is apparent that by far the primary motivation for the Crusades was wealth production by the hoped-for control of the trade routes. The fourth crusade didn't even bother to go to the middle east and stopped to conquer Constantinople instead. The first crusade was driven by second or third sons of royalty who would not succeed their fathers. Later the "Big Boys" went on one [Richard the Lion-Hearted, Philip Augustus of France, Frederick Barbarosa of Germany/Holy Roman Empire], whereupon Saladdin kicked their asses after much bloodshed everywhere. Both Saladdin and Richard come off as somewhat reasonable leaders given the viciousness of this. Frederick was OK too in general, and was killed in battle. Philip seems to have been a jerk who only went because he didn't trust Richard alone with the conquest opportunity. Anyone looking for "spiritual intentions" need look elsewhere. One glance at the Crusader "policy" of using the severed heads of their victims as catapult "shot" should dissuade such naiveties.
I view threads like this as unconscious attempts at increasing the hatred between American anglos and American muslims and muslims in general. Everyone's entitled, I suppose, to their prejudices and fears, but they should not be based on the Crusades.