I've seen this quotation attributed to Richard Dawkins. From what I have read of him, it seems like something he would say. The idea, I take it, is that all gods are on a par, and so, given that everyone is an atheist with respect to some gods, one may as well make a clean sweep and be an atheist with respect to all gods. You don't believe in Zeus or in a celestial teapot. Then why do you believe in the God of Isaac, Abraham, and Jacob?
What Dawkins and the gang seem to be assuming is that the following questions are either senseless or not to be taken seriously: 'Is the Judeo-Christian god the true God?' 'Is any particular god the true God' 'Is any particular conception of deity adequate to the divine reality?' The idea, then, is that all candidates for deity are in the same logical boat. Nothing could be divine. Since all theistic religions are false, there is no live question as to which such religion is true. It is not as if there is a divine reality and that some religions are more adequate to it than others. One could not say, for example, that Judaism is somewhat adequate to the divine reality, Christianity more adequate, and Buddhism not at all adequate. There just is no divine reality. There is nothing of a spiritual nature beyond the human horizon. There is no Mind beyond finite mind. Man is the measure.
That is the atheist's deepest conviction. It seems so obvious to him that he cannot begin to genuinely doubt it, nor can he understand how anyone could genuinely believe the opposite. But why assume that there is nothing beyond the human horizon? The issue dividing theists and atheists can perhaps be put in terms of Jamesian 'live options':
EITHER: Some form of theism (hitherto undeveloped perhaps or only partially developed) is not only logically and epistemically possible, but also an 'existential' possibility, a live option;
OR: No form of theism is an existential possibility, a live option.
Theist-atheist dialog is made difficult by a certain asymmetry: whereas a sophisticated living faith involves a certain amount of purifying doubt, together with a groping beyond images and pat conceptualizations toward a transcendent reality, one misses any corresponding doubt or tentativeness on the part of sophisticated atheists. Dawkins and Co. seem so cocksure of their position. For them, theism is not a live option or existential possibility. This is obvious from their mocking comparisons of God to a celestial teapot, flying spaghetti monster, and the like.
For sophisticated theists, however, atheism is a live option. The existence of this asymmetry makes one wonder whether any productive dialog with atheists is possible.
Companion post: Russell's Teapot: Does It Hold Water?