What is your vision of the wrongness of the crusades? It's certainly not that the religion which had spread itself with the wars across the outer lands of the East Roman Empire on the promises of 72 virgins for its fighters and the war until the whole world submits to their rules (the name of the religion means "the submission") was morally right.
The ones who got morally wronged by the crusades are actually the Christian nations of the East Roman Empire:
https://en.wikipedia.org/wiki/Sack_of_Constantinople_(1204)
What is your vision of the wrongness of the crusades? It's certainly not that the religion which had spread itself with the wars across the outer lands of the East Roman Empire on the promises of 72 virgins for its fighters and the war until the whole world submits to their rules (the name of the religion means "the submission") was morally right.