The AI has a good point but the solution is wrong. There are thousands of jobs out there that are critical, yet only a few humans can do them. This is a natural conclusion of a society built around skilled labor. Eventually there will be some jobs for which it's critical you retain someone with skills. And so, for organizations/governments where they realize this, they set aside budgets to hire and maintain those skilled workers.

When the skilled workers start to run out, either they find new workers to train, or they replace the thing that needed skilled workers (because the thing is probably quite old and in need of replacing anyway). This happens to virtually all kinds of human industry. The world doesn't fall apart when very old skills start to disappear. We're humans. We adapt. We can't even stop ourselves from doing it, it's in our DNA.

Worst case, what happens if everyone forgets how to write Python? 1) You can pay someone to sit down and read books on Python, 2) you can replace the Python with Go. That second one is actually the better choice since the AI can already code in all these languages. But what happens if all the books are gone and the AI can't code anymore? You make a new language. How will you know how to make a language? Either you ask the AI how, or you figure it out the same way humans did the first time. Or some other solution, of which there are dozens.

The point is, there is no skill cliff we're going to fall off of. It's an irrational fear. If the people who have this fear would stop and think about it for 20 minutes, they could come up with a long list of ways to respond, other than "keep an army of Juniors around doing things by hand so nobody ever forgets anything".

(the plane example was stupid, btw. almost nothing in the world is as difficult to recover from failure as a 400-ton metal cylinder going 400mph at 30,000 feet in the air. most of the time it's fine to just call a repair guy. for the cases where you can't, invest in better process and better certification/recertification)