Yeah. It's a sad disease. Psychosis combined with emotional disregulation is not fun. Fighting against it doesn't work very well because the other person isn't seeing what you're seeing.

From my own experience, I explain psychosis as someone trying to tell me a cloudless sky is pink. I've known the sky is blue my entire life. Everyone knows the sky is blue. Who is this bizarre person who thinks otherwise?

On top of that, humans tend to double down when challenged. Fighting it just doesn't work. Their memory is gone, so any progress you've made is undone very quickly. If you don't understand what is happening, you're going to lose your mind too.