The biggest problem with the god-myth is that almost everyone thinks god is on their side. A little less god would go a long way toward making the world a better place. Think of all the violence that wouldn't take place if more people believed in treating others the way they want to be treated instead of using the god-myth to justify violence and war, stopped using the myth of forgiveness to justify doing something bad now with the intention of gaining divine permission later by saying "I'm sorry" to their imaginary friend at the end of the week.