I think a further problem is that these books aren't just impacting individual patients who choose to read them, the views spread, they can promote/justify ableism, and it's difficult to get an ableist to take responsibility for the harmful impact of their views/actions.

I'm a victim of medical negligence and have every reason to distrust the medical system itself, but more scientific understanding is definitely the answer, not less. It's not even just the most obvious crystal healing stuff, psychology as a field is horrific for woo, and still, despite a history of medical abuse, holds the influence to be more widely harmful. Having a bunch of misplaced pins through my spinal canal, possibly splitting the cord, and severe life-altering neuropathic pain incl intense burning, I'd at least be tempted to watch the writers of some of these books be added to the pyre and sweetly ask them 'Have you considered that pain is all in your head?'.