You could make the same argument for the internet pre-LLM; it could be relied upon over immediate connections. It's also reminiscent of Socrates's skepticism of written text over oral tradition.

Speeches haven't gone away, videos are more popular than ever, and consulting within our social circle will continue on.

I think there's something to be said about there being an isolationist phenomenon in society that might be contributing in part to low fertility, but that significantly pre-dates LLMs. It's easy and convenient for us to be alone - people create friction. We've been entertained by the TV set for a century now. That said, we remain social creatures and enduringly have a need to be with others, at least to some extent.