An AI isn't going to throw you a birthday party, or pick you up when the last bus for the night blows past you. (I guess I'm dating myself with that very pre-Uber example).
The ever present knowledge that you are unwelcome and alone cannot be solved with a glorified chatbot, because to be lonely is to accurately perceive oneself is unwelcome in society.
This is often the point folks stan "therapy" -- but in my experience, people say "get therapy" because they want you to learn distress tolerance... and shut up.
What happens when you go to therapy, and unpack that you're unwelcome in your home, and systematic discrimination is going to stop you from leaving?
For some, it seems, they turn to a chatbot to replace the warmth others get from friends.
Or maybe I'm projecting a bit but hey, what is a nym for, if not to speak the truths we wouldn't under our real names?