It's not a belief when supported by evidence and research. It's a fact the medications are tremendously helpful with schizophrenia. I don't believe this, I know this, I have seen.
It's helpful in some respects, and there are harms in other effects. The medications all they do is block dopamine receptors, block enough, and yes, the brain can't do much and so they mimic more normal when most of their brain is blocked from activity. But while they halt activity to the extent positive symptoms in some people go away (while not everyone do they go away), they increase negative symptoms and make things harder in many respects.
But what is the implications if there is interior world and people with this illness just don't control their 6th sense properly or know how to cope when open to the spiritual world? What is the true nature of the illness then? Medications are they a permanent solution or are they meant to be more like if someone breaks a leg, you protect the leg till it heals.
Also, are demonic beings beatable, or should they be feared? Or are they beatable with the help of God... if demonic possession has to do with it.
Mental health - always says let's have dialogue. But from my experience, it's been no dialogue, just a dictation.