Can a person follow the teachings of Christ and seek to violently harm another person at the same time, in the same place, in the same respect? I thought logicians realized that was a contradiction centuries ago. Unless you're saying that Christ advocated violence, which is not a passage I have read. Can a person follow Muhammad and harm another person? Well, you do see what Mohammad allegedly wrote and how he lived. So, it kind of seems like a false equivalency to me.
He who loves God cannot endeavour that God should love him in return - Baruch Spinoza