Most “unskilled labor” is heavily skill dependant. You wouldn’t want a chef, builder or plumber who didn’t know what they were doing. And for production: machinists, mechanics and foremen make or break profit with their skills.
So what’s a better name for these jobs?
The jobs you list would definitely not fall under the common definition of unskilled labor. Most of them are trades.
Maybe it’s a language issue, I mostly discuss this in economics contexts and experience that the divide is always skilled vs unskilled labor.
Trades never seem to come up in such discussions, but they might be an assumed third party I just never hear mentioned.
Traditionally it means jobs which could be done by most people with only a minimum of training, rather than specifically requiring formal education. Trades generally do not fall under this because they require significant training, whereas a general labourer who assists a tradesperson with moving materials and cleaning and such would be “unskilled” in this sense. Working the checkouts at a supermarket, doing data entry, or most positions in a fast food place would be unskilled. Any position in which the employer wouldn’t be requiring qualifications or experience if they were hiring your replacement.
Of course they’re all still 100% real jobs and should be respected as such, so I wouldn’t be against figuring out a term that feels a bit less dismissive of them
“Unskilled” would mean a job that someone off the street could do with minimum supervision. Moving boxes, mopping floors, things of that nature.