Faith is a means by which the intuitive sense that life is perfect, the conscious but unformed state into which we are born, and only too soon to have ripped away from us by learning words and ideas that cause pain, is retained by religious people. This faith that life is perfect becomes, in religion, projected. Faith works because life IS perfect and one can believe so deeply that true reality actually manifests. This manifestation, however will take the form of an awakening to a different conscious state, a direct experience of timeless perfection. The result will be, not a person of faith, but a Knower. Only a Knower has proof that God exists.
People of faith, sensing that life is perfect, however, can believe in a million different forms of God and a million different ways to approach Him, none of which capture the actual state of knowing but are only fingers pointing.
When the atheist looks at such a chaos of conflicting ideas logically, rather than with the instinct that life is perfect, he rejects them as unprovable nonsense. Rejecting the premise that there is a God, he or she rejects the notion that God isn't a thing that has any kind of reality at all. He or she closes the door to God completely, including the notion that God can only be known as the result of a breakthrough into a higher state of consciousness.
The Knower knows. The faithful believe. Doubters doubt believers. Of what significance can there be in arguments between the last two?