An example would be “due to X, essentially all humans are unemployable, except as sources of entertainment for the rich, or as meat”. As this is also the conclusion, it can’t be used as an in-advance example for why the argument is or isn’t reasonable. (Inverse begging the question, I think? https://en.wikipedia.org/wiki/Begging_the_question)
I’m saying “if so you should be able to find an actual example.” is false.
CGP Grey argued (paraphrased) “if X happens in the future, Y will be like Z”, you are arguing that Y will never be like Z in the future because Y is not currently like Z.
But X has happened many times, and Y has never yet become like Z. Automation has replaced workers on massive, ginormous, gigantuan scales. Factories have replaced manual workers, then more efficient factories have replaced those factories, and then that's happened again several times over. Yet still we have near full employment and many, many more open positions than we have unemployed.
How long are we supposed to wait for this prediction to come true, and how many times does this have to be disproved across how many economies?
X is “AGI invented”. Not special purpose AI, not automation, AGI — the G stands for “general”. If this has ever happened, it wasn’t on Earth (unless you count evolution producing us, in which case the example is “Neanderthals are all dead”).
I see. I don’t know how to rephrase it to be better, but I’ll have a go:
Horses represent the importance of muscle power in the economy, which was made vanishing small by mechanisation; AGI would do the same for intellectual labour.