Those people tend to suffer from AI psychosis, and I don't think it's a thing you'd want to admit publicly that you don't interact with any humans and prefer the company of machines (let us also ignore that such people wouldn't be in public to begin with).
I can't image such people are living meaningful lives in any capacity. They're up there with consumers that think the only purpose in life is to cheerlead for a corporation and buy their wares.
The GP said more with LLMs than people - not no interactions at all with people and not preferring machines to people. I don't think it is that hard to spend more time talking with LLMs than people if you work in tech and I don't think that takes away from one's life meaningfulness.