If I can wade in, and not knowing really which side of the argument I fall on, except perhaps to quote Le Carre's summation/justification from "Tinker, Tailor, Soldier, Spy", and I paraphrase, '....as much a matter of aesthetics as anything else'.
We are all on journeys, and some will make the rational decision to move towards atheism, others perhaps rationally towards agnosticism, or from those rationally to one of the forms of theism or vice versa. My faith experience was a move from an inherited roman catholicism, to a rebellious atheism, and then to an extreme reformed protestantism. No