If you have the latter option, you also have "leave the bad people behind" as an option because it is made of the things you need in order to "retreat solely into interacting with LLMs" and is in fact simpler.
Cynicism and casting learned helplessness as a virtue are not the solution.
No. Actually it's based on information theory, and probably a better model of what interacting with an LLM would look like a year or five later than the one you are operating on.
Here's a little hint: It has total amnesia. LLMs by their nature scale only so far, and while they may scale larger than ChatGPT, they aren't going to be scaling for an entire lifetime of interaction. (That's going to take another AI technology.)
Ever interacted with someone with advanced dementia but otherwise functioning faculties for any period of time? (I suppose they could well make good therapists too.)
I do think there is higher maximum with other people. But relationships are hard. They take work and there's a decent chance you invest that work in the wrong people.
I can see a life with primarily AI social interaction being an okay life. Which is not the best it can be but also an improvement for some.