Why is the broad term of "Christians" given to the Crusaders?

We all know what church orchestrated and promoted and financed the Crusades. Yet all Christians will forever be painted with the same broad brush as cut-throats and savages. As a believer in the finished work of Christ, that he died for my sins and rose again on the 3rd day, I know that I am a Christian. I have no need of anything more than Christ. So why are people like me blamed for the Crusades when it was actually a church of Babylonian paganism, a church of mysticism and idolatry, the Catholic Church, that inflicted its beliefs upon the world.