Christianity isn't just a "belief System" it is an experience.
Yes, a basic tenet of Christianity is that it is the only way.
Another basic tenet is that Jesus Christ is the only begotten son of god.
Another: The wages of sin is death (spiritual, eternal seperation from god)
Another: "I am the way, the truth and the life. No man cometh unto the father but by me."
Another: Jesus is the Lamb of God, slain from the foundation of the world.
Another: We are lost not because we've "done sins" (that too) but because we have a sin nature.
Another: Christ's crucifixion is payment for "the wages of sin"
One more: We have to accept or reject this payment of our own free will.
I don't say any of this to get on anyones toes. Only to try to illustrate why a "born again Christian" (check out Nicademos) insists that you have to be a believer to truely understand and thereby truely communicate gospel songs.
And why that Christian isn't going to accept the idea that there are many paths. Or ANY other paths that are valid.
: ) Chip at home