Bias Between Salvation for Christians & Salvation for Muslims?

One is telling the truth. You cannot call telling the truth bigoted, now can you? Remember all the cups to choose from in Indiana Jones and the Last Crusade? You cannot call the knight bigoted for warning that one cup holds the key to eternal life and the other to eternal death. It was a warning--nothing more. And really, no one is walking away joyful when one does not "choose wisely".