Erhmmm, excatly is it "quite feasible in its way" ? I never seem to grasp your ideas.
Someone could say "there is no god and death is the end of the individual." They could then say "well, at least life is fascinating, beautiful, terrible, and in the end worth living, because it has its charms."
We can give up "god" and "afterlife" and still
be glad to be born. We can even say that a certain futility haunts all our grand posturings, and still be grateful for these grand posturings as the best that are available.