There was nothing justified about the Crusades. It was just that the Roman church wanted the money that came from the pilgrim business.
That’s an overly simplistic view of history.
It’s accurate.
No, it’s incredibly un-nuanced.
It’s the equivalent of saying that the United States bombed Japan purely to be mean.
The thing is that we bombed Hiroshima and Nagasaki to put a quick end to the violence. Ironically enough that’s the same reason the Empire blew up Alderaan.