There is a story ( told by Primo Levi ??) of jews in a Concentration Camp who gather together and debate if there really can possibly be a God.
At the end of the debate they decide unanimously that it is impossible that a God of love exists.
Then the Rabbi amongst them says, "It is now time, let us all go and say our prayers".
JW's, though in the case of most of them, incapable of the kind of philosophical debate those jews had, are very like them.
Their culture is so ingrained that Truth cannot penetrate it.
Karen Armstrong relates this story in the context: an 11 year old boy had just been hanged in the camp by Nazis.
The conclusion? When your only identity is your religion you can't UNbecome who you are even if it is a false identity.