True. But Look at the Crusades. Both are equally starfishs. Don't forget that extremists do not define a religion as a whole. Its made up of people, and people are different from eachother.
The Crusades weren't fueled solely by religion. Another goal of the Crusades was to get luxury resources from Western Asian markets, or to connect trade routes over sea to them. It played a significant part to set up the Renaissance.
Additionally, those Crusades that did happen were also done to curry favor from the Vatican, so that monarchs and nobility would have diplomatic leverage.
These mentioned, it is disingenuous to mention the Crusades as a purely religious movement.