> I don't accept the unregulated and uncontrolled use of LLMs for therapy for the same reason I don't accept arguments like "We should deregulate food safety because it means more food at lower cost to consumers"

That is not the argument. The argument is not about 'lower cost', it is about availability. There are not enough shrinks for everyone who would need it.

So it would be "We should deregulate food safety to avoid starving", which would be a valid argument.