The implicit "by hand" was pretty obvious to me, fwiw. I don't think that assertion is disconnected from reality at all.
Over and over again, I'd listen to someone's story of how back pain meant they could no longer work, or how a shoulder injury had put them out of a job. Then I would ask: What about a job where you don't have to lift things, or a job where you don't have to use your shoulder, or a job where you can sit down? They would look at me as if I were asking, "How come you didn't consider becoming an astronaut?"
Wow, talk about being disconnected from reality.
Sugar beet field weeding used to be done by teams of migrant workers with handheld hoes. I think they've figured out how to not have the weeds in the first place with better pesticides. Most fruits and vegetables are picked by hand.