I couldn't disagree more. "predictions made about one's neighbour scale downwards in accuracy relative to increased cultural diversity"? I feel like this is just a fancy way of saying that you're uncomfortable with people being different from you. The social tension you're describing is in your own head. Even the article you're citing doesn't even agree with what you're saying.
I feel like these examples are all where human categorical thinking doesn’t quite map to the real world. Like the “is a hotdog a sandwich” question. “hotdog” and “sandwich” are concepts, like “intelligence”.
Oftentimes we get so preoccupied with concepts that we forget that they’re all made-up structures that we put over the world, so they aren’t necessarily going to fit perfectly into place.
I think it’s a waste of time to try and categorize AI as “intelligent” or “not intelligent” personally. We’re arguing over a label, but I think it’s more important to understand what it can and can’t do.