Supernaturalism/naturalism gets in the way.  I think there may a clearer perpective from which to see what the problem is with religious belief.  I haven't come up with a better word, so I think the best way to describe what religious belief involves is 'magic', which is to have an influence in the world through direct will, with nothing physical involved.  Most people still believe in magic.  They believe that their minds are magic, and that there is something occult going on in their heads.

This mystical view of self is very, very strange given modern science, and quite deluded. Perhaps this is one way to see why it is so deluded: our world isn't full of magic any more. It used to be. But magic has been excluded from the rocks, the trees, the rivers, and then from the winds, the seas, the mountains and the skies, and finally from the heavens. The only place left to pray to is a place beyond all places - the god beyond time and space. The wise theologians have ground up the being of god to make it fine enough to sink into quantum gaps. Theism consists of a being gently nudging a trillion trillion atoms in order to work miracles.

So, the tide of magic has gone out into the far distance, vast orders of magnitude away from our daily lives. But the believer doesn't yet realise that the water has gone. His mind is flopping around on the beach like a stranded fish, insisting it's still swimming in the mystical.

Our bodies are drained of magic. Perhaps we can make our own material magic with science, as we know the world is made up from quantum pieces, where direct influences of some kind (although not mind) seem to be the rule.  But we need to recognise what we are, which is physical beings, built from microscopic causes and effects, we are systems, not souls, machines, not magic.