Perhaps the statement “life would be futile without God” is intended to suggest that those who do not believe in a god are leading futile lives. According to whom? And wouldn’t such a view invite further assessments of the value – or nonvalue – of the lives of those who don’t believe in whichever god is supposed to provide “meaning” to people’s lives? How many stages is the concept “dispensable” in the mind of the believer removed from the concept “futile,” if he buys into the view that “life would be futile without God”? Is the believer who believes that life is futile without his god inclined to suppose that eliminating people who do not believe in his god is just and fair? Could the “life would be futile without God” premise be used to dehumanize people whose beliefs are different from one’s own?
These considerations of course in turn point to the fact that the claim that “life would be futile without God” is certainly not self-evidently true, so consequently it must be argued for in order for those not already accepting it to give it any credence.