That depends on what you mean by those terms. Was the battle of Normandy a good thing?
I'm confused. Yes, D-Day was a good thing. Yes, D-Day was violence in service of democracy.
What does this have to do with whether (1) the Crusades were a good thing, or (2) whether religion (particularly Catholicism) was a substantial cause of the Crusades?
Here's the new thread for posting quotes, with the usual rules: