Why haven't I heard of any of these other AIs before?

You have. They're in the news every day.

How do all of the people producing statistics indicating that there are a lot of dumb people coordinate their efforts to perpetuate the fiction?

Perpetuate what fiction? They produce statistics about all the dumb people, compiled into glossy magazines. Hell, you're wearing a 'bottom thirder' sleeve button on your shirt right now.

No I'm not.

Yes. Yes you are.