I think that you can find different answers or approaches to this question. I am going to throw my hat in the ring by suggesting that Quixote is not entirely a defender of Christianity. I am not sure if I would go as far as calling Quixote someone who “defiles” Christianity. I don’t think that his mission is to destabilize the religion, yet I don’t see him as one who is a defender of it. Quixote’s fundamental quest is for the higher notions of chivalry, something he sees as the ultimate end. His willingness to go to the ends of the earth in defending his love for the chivalry- bound notions of being a knight are not Christian in nature. For Quixote, this is the ultimate end to his state of being, the subjective means by which he appropriates the world around him. It is not in a Christian sensibility. Though I do not think he would oppose a spiritual order that embraces the ideas of knighthood, I think that his explicit purpose is defending the order of knighthood and his love of Dulcinea. All else is secondary, if not tertiary. It is for this reason I see him as not a defender of Christianity.