Don't be obtuse. There are degrees of mental instability and no, some random person having a touch of it in very specific ways isn't the same as someone deciding to try killing the Queen of England because a chatbot said so. Most people wouldn't be quite that deluded in that context.

I'd love to see evidence of mental instability in "everyone" and its presence in many people is in any case no justification for what are in effect controls on freedom of speech and expression, just couched in a new boogeyman.