Maybe, but the histories that I read suggest the issue was recent Muslim attacks on Christians and desecration of holy sites. Sure, this could easily have been propaganda to send knights and others off to fight non-Christians but there was no doubt some kernel of truth to it as well. Of course, the First Crusade kicked off with the traditional slaughter of Jewish communities in the Rhineland and culminated in the slaughter of Jews in the so-called Holy Land.

My comment was actually meant to respond to the idea that the Crusades were an instance of colonization by pointing to the Arab colonization.

I wonder, given your reply, whether there is some informal statute of limitations after which the colonialist settler become indigenous. If so, that would explain how the Palestinians can pretend to that title, in the face of an earlier and continuous Jewish presence.