If that is your point, then I accept it because you do have to believe and you do have to love and you do have to follow Christ. Now if you said it was a religion based on works FOR salvation, I would disagree with that, but I will agree that you do have to do something to be a Christian.
As for denouncing the Crusades, I can denounce it but in the same light that I would denounce terrorism because I don't feel personally connected with it. The Crusades are a Catholic act not a Protestant act and I am Protestant and so were my ancestors, and you must remember that the Catholics killed, imprisoned, and beat protestant Christians who had the gall to stand up to the pope or the Catholic church. As for that matter, they would persecute anyone even a fellow Catholic if they opposed what the Catholic church ordained. On the other hand, there are Protestant ministers who have committed acts that I do denounce, but when you have any religious leader that puts themselves on the same level with God, tries to take control over the people's lives, or have a lifestyle that is outside of God's will, I personally don't think that leader is a true Christian. I think they are using the name of Christianity for personal gain (power, money, etc) so I think it is the responsibility of Christians to look out for these "wolves in sheeps clothing" and expose them for what they are. This way we protect the sheep from falling prey and we let others know that we don't consider the wolf to be one of our own.