Farmers won't be fired. AI won't replace plumbers. Hairstylists, chefs, landscapers, escorts, nurses, fisherman, etc. There are and will be plenty of people with jobs that AI can't do.
Maybe not at first. Regardless of when they get replaced by tech, you’ll see those jobs get saturated and wages go down. Which sucks because they are already low
10 years ago we said "Technology cannot replace programmers, accountants, lawyers, doctors, etc" and here we are, potentially on a cusp of replacing all of those in a decade.
We can keep moving the goal posts all we want, but eventually things will get automated.
Why can't we have automated farm land, automatic harvesting, automatic sorting, delivered automatically via robotic trucks to your door? It's not that far fetched.