What we really need are agreed upon facts embodied by reality. The explosion of 'beliefs' populating the vacuum following the rise of atheism these days remind me of the explosions of diversity that mark the boundary between epochs. Hopefully they'll be short-lived but the capacity for self-delusion never mind the apparent willingness to be deluded by others seems ridiculously strong.
Highly intelligent people aren't being deluded by others of less intelligence. They're already indoctrinated into being believers as children who didn't have the mental capacity to avoid it. They are imprinted with religious beliefs for life, just as a baby duckling will be imprinted with the belief that the Fox is it's mother if the duckling see the fox before seeing it's real mother.
When parents stop the child abuse of brainwashing children, religious beliefs will come much closer to dying out.
Christianity can't save itself by rewriting their bibles to suit modern day understanding. An attempt at doing that would blow their cover.