By the same token, AI came along and we all still have intelligence, needless, eh? I mean people reading and writing stuff has nothing to do with AI. I don't see how some people see everything as a zero-sum game.

All AI is doing is solving these puzzles, which proves they don't need any form of intelligence. You're wrong for associating AI with human intelligence. It will never happen. It might be faked once, like the moon landing, but that's it.