> Unskilled labor simply refers to jobs where any specialized skills required can be learned on the job in a short period of time, usually less than 30 days.
You're not going to learn welding in 30 days. Nor are you going to learn how to design a bridge. Or program in C++. Or diagnose a patient. Or be a lawyer. Or drive a race car. Etc.
I didn't say all jobs, did I? You successfully listed (some) jobs that might take longer than 30 days to learn.
The thing about "unskilled" jobs, everyone seems to look down their noses at, is that they facilite the people doing the lofty jobs of: lawyer, doctor, c++ programmer, etc. Without them getting done for you you couldn't do what you're doing.
Can the brickie work without their "unskilled" laborer? Sure, but good luck getting you house built in a reasonable time.
I don't understand your point. Yes, there's a lot of unskilled jobs, possibly a majority of jobs. Far from everyone looks down on unskilled jobs, and nobody is saying they're not important.
The brickie's "laborer", I literally said it in the post you replied to; the person who moves bricks, makes up the muck, generally keeps the brickie supplied with materials.
Credentialism has certainly gone too far in many fields, but I’d still like my doctors, lawyers, and engineers to have more than 30 days of training in their field.
This is nearly all jobs.