Sorry to hear your frustration and struggles with mental healthcare. Indeed, it is hard to find a provider who wants to work with someone who has psychosis. I'm in the same boat, but I've fortunately found a team that's okay with treating my psychosis, even if they aren't the greatest. So don't lose hope... because those providers do exist!
In general, I think it is a major red flag when *any* kind of doctor wants to immediately change up someone's meds on the first appt, as you've unfortunately found out. I'm a firm believer in the "don't fix what ain't broke" mentality unless I am presented with compelling evidence that my meds are extremely detrimental to my health. Though, I am very sorry to hear you were a victim of this person's ignorance, carelessness, malpractice, and inexperience.

You are, unfortunately, not the only one who has been in this situation, and I know that sometimes you get desperate and need a dr really badly, so you're stuck between a rock and a hard place, and are forced to make a tough decision.
A friend from PC was given a new dr by Medicaid and the lady forced her into taking latuda even though she was on haldol for years. Haldol was working fine, but then the lady insisted on "safer" latuda. Well, that ended pretty badly: Hospital. (Again, if it ain't broke, don't fix it!)
But just to be clear... I am NOT blaming you or victim shaming you. It happens to the best of us and it's total BS! Some drs do what they want just because they can, and some of them are unfortunately influenced by big pharma much more so than others, which is why they'll actually push certain meds. So I kind of wonder if your idiot PA was getting paid to prescribe certain drugs, hence the huge overhaul. In fact, I think my first pdoc was actually paid to give me latuda... I mean, it was my first antipsychotic and the most expensive option. Why not a generic like abilify, geodon, etc.?