There is also a point where people will prefer talking to AI instead of human due to the pseudo-guaranteed accuracy, it's already happening within dev communities and many others. I personally prefer arguing with multiple models over my specs than another teammate, and this is the new normal already.
It's sad, but I wouldn't expect past a certain point to ever talk to a human when it's something virtual, there is also the perks of it which is customer not waiting, that annoying moment when you call HSBC and you need to wait 30min (day partially ruined) to get a human on the line which anyway will trigger all sort of automated/AI procedures, what's the point of the human at all?
Let's also not forget that humans interacting in call-centers don't have a lot of knowledge in general, you can see the requirements in the relevant countries (Philippines, India...) which are quite low, many people working in callcenters barely know how to use a computer or understand finance in any meaningful way, yet they work at JP Morgan, that's real life, I would prefer to be helped by a well-managed "AI" than an incompetent employee personally.
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The general catastrophe in jobs and social issue is a different matter than accuracy, and even a different discussion. But for efficiency, it sounds absurd to think that AIs will not beat humans on a phone call/chat.