The fact that there are those alive who truly serve God is the ONLY reason you an I even exist. Without their religion the world would have already been wiped out. Its that religion that makes it possible for us to even be alive.

On a lesser note, without the restraints of human decency brought through a knowlege of God, at the very least we all would be facing a guantlet of violence unlike anything we currently know, if there was no religion.