That is a mischaracterise of the crusades, at least with regard to the crusaders.
The crusades were a reaction to the Arab and Turkish Empires, which by then (between them) invaded at some point (and mostly conquered) Spain, France, southern Italy, most of the Mediterranean, North Africa, Italy, Anatolia, and the Levant, and more.
I had not noticed the Palestinians aggressive expansionist empire.
The crusades were a reaction to the Arab and Turkish Empires, which by then (between them) invaded at some point (and mostly conquered) Spain, France, southern Italy, most of the Mediterranean, North Africa, Italy, Anatolia, and the Levant, and more.
I had not noticed the Palestinians aggressive expansionist empire.