Yes vekky, I'm well aware that is a 'gross' figure (in more ways than a statistical sense), but it has always been thus. Just as they are not all Israel that are of Israel, so it is equally true that not all of Christendom is composed of Bible-believing Christians.
Trapper himself is eloquent testimony to the fact. That doesn't alter the fact that God's true people will ultimately triumph, however bleak things might appear to us. Remember God's answer to Elijah when he was in despair over Israel's infidelity?