That other guy asked us to imagine a world without several things he apparently found offensive. One of those was the Crusades.
The Crusades were essentially defensive wars, waged against a violently expansionist mohammedan enemy. That some of the crusaders engaged in gross misconduct is given ... that the Crusades were a necessary action to preserve the West against those who would destroy it is politically incorrect, but true.
If you wish to condemn the Crusades, go live in Iran, Saudi Arabia, or some other garden spot of tolerance tolerance and enlightenment. That's what mohammedanism would impose on the whole world.
As a Jewish person, I don’t have a problem with the crusades, as they were largely defense wars against muslims.
I do, however, have a problem with the pograms of peaceful Jewish people living in Europe or wherever that went hand-in-hand with these wars.