Fascists with their fuhrer principle, and the Commies with Democratic Centrism, also believe in an objective reality which they can create and which everybody will believe even if they have to kill off the nonbelievers.
I think you should reassess your understanding of the place of "objective reality" in a universe where religious folks, of all stripes, accept change, revelations, miraculous occurrences, and so forth ~ all inexplicble at the time, but maybe explainable ultimately, and still useful in assisting in comprehending our existence for the time being.
Such mysticism allow them to accept the change that is constantly occurring.