I think it's important to distinguish between repecting a person vs. respecting his religion. As a Christian, I agree with a lot of what DoubleOhFive is saying.

I can treat a person of a different faith with respect, kindness, and love all while believing his faith is completely false. Just because I don't agree with what he believes doesn't mean I hate him or treat him poorly (quite the opposite!), or even talk poorly about his religion to him or behind his back. I can show both him and his religion "respect" without ever agreeing with it.