I find that a lot of the reasons people put up for saying "LLMs are not intelligent" are wishy-washy, vague, untestable nonsense. It's rarely something where we can put a human and ChatGPT together in a double-blind test and have the results clearly show that one meets the definition and the other does not. Now, I don't think we've actually achieved AGI, but more for general Occam's Razor reasons than something more concrete; it seems unlikely that we've achieved something so remarkable while understanding it so little.

I recently saw this video lecture by a neuroscientist, Professor Anil Seth:

https://royalsociety.org/science-events-and-lectures/2024/03/faraday-prize-lecture/

He argues that our language is leading us astray. Intelligence and consciousness are not the same thing, but the way we talk about them with AI tends to conflate the two. He gives examples of where our consciousness leads us astray, such as seeing faces in clouds. Our consciousness seems to really like pulling faces out of false patterns. Hallucinations would be the times when the error correcting mechanisms of our consciousness go completely wrong. You don't only see faces in random objects, but also start seeing unicorns and rainbows on everything.

So when you say that people were convinced that ELIZA was an actual psychologist who understood their problems, that might be another example of our own consciousness giving the wrong impression.