I think this form of delusional psychosis brought on by AI is a more rapid version of the delusions formed in many of the echo chambers of the internet. It's basically a positive feedback loop created by, in this case and AI, but in other cases, people who seek uncontested agreement for their viewpoints.

If a person refuses to acknowledge any information that disagrees with their view and instead actively seeks niche groups that only support their ideas, then they are at risk of this same path of psychosis.

In real life we are forced to reconcile a variety of views that disagree with our own from people who we've come to trust through forced interaction which naturally broadens our understanding of the world.