@Appleblossom it's such difficult territory to traverse. Trying to piece together what psychosis is and how it manifests from second and third hand accounts seems a little like the blind men and the elephant. Mixing in the possibility of cultural references and questions of whether madness is a valid response to a maddening environment adds to the complexity.
All I can offer - humbly - having lived through it - is that I recognise when I'm sliding downhill into psychosis and overthinking and overreacting My psychoses have had many themes. The big episode that saw me committed did have religious elements as did the experiences of many others in the admission ward. But my delusions have had many storylines drawn from past and present worries. Yes I do remember many of them. I do respond well to medication although I know you have your doubts about it. And as I re-emerge from psychosis I could almost use Clouds as my theme tune - I've looked at life from both sides now. And I would be able to be conscious of both delusional and normal interpretations simultaneously on different levels, and choosing between them, and having the delusional component fade.
So psychosis can be real to some of us, and medications can be effective for some of us. I hadn't experienced psychosis - not to a level needing hospitalisation - for more than 20 years but following major surgery with an adverse event , then a heavy fall the first night home, I succumbed. I was proactive in recognising it was happening and asking for increased medication, before entering the twilight zone where my fears materialised as beliefs and vivid pseudo-memories that may have been dreams. After the worst was over I was quickly tapered back to a low maintenance dose. Would you call that a win for the medical model???
Perhaps the world is a complex tapestry or mosaic that allows the coexistence of many many different experiences.