I live among them. I know their numbers
What I doubt is the ability of behavioral studies to sway opinions when the entirety of physics, astronomy, biology, geology and anthroplogy have not managed to convince roughly the same percentage that we have been around for more than 6000 years and didn't come from 2 ex nihilo specimens.
I've been at this belief/nonbelief thing most of my life and I have personally witnessed one "deconversion" by argument alone. Just one. And that was from the internal inconsistency between omnipotence, omniscience and omnibenevolence as it relates to eternal punishment. Now I know of many many deconversions and know that there have been untold millions in my lifetime, but almost all have been introspective and, embarrasingly perhaps given atheism's general reputation, largely subjective. Data doesn't seem to effect believers. If anything it's like those recent studies on the very analogous CT loons, where science demonstrating they must be wrong was absorbed into the conspiracy and strengthened their acceptance of the bullshit itself. It does the same for religious belief.
Studies like this have some utility, but it's sparrow's beak and mountain stuff, only of any use to those already teetering on the brink of nonbelief and hanging on with their fingertips.
Now yes I know this wasn't posted as an attempt at a slam-dunk refutation. It is just another sparrow's beak sharpening and in that context perfectly fine. Just doubt it's going to scratch a mountain that much.
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