According to the United States Government, a radiologist is not a skilled laborer OR an unskilled laborer, they are a Professional. A member of the Professions.

That’s wrong they are skilled labor as they meet all the same qualifications- long term of training, a title that specifically describes what they do, and professional certifications proving this.

Nothing supports your definition that I can find. At all.

That’s because you keep looking in the wrong places like USCIS as opposed to say the department of Labor. You could also just google “skilled vs unskilled labor”.

Skilled labor refers to the skills you need to do the labor

No it does not. That is the mistake that people with no background in economics make all the time. This thread is filled with people continually making this error.

Skilled labor does not refer to job titles that self-describe their skills. “Mason” is a skilled laborer because it describes what you do?

Yes you know a mason can build your retaining wall and you also know they are not experts in plumbing.

Contrasting the above with a CDL driver A CDL driver who can drive a tractor trailerikely can drive most trucks but not everyone with a CDL is capable of doing so so the job “commercial truck driver” isn’t skilled.

Masonry requires no special certifications at all.

Yes. they do.

In fact, according to the USCIS, a mason isn’t a skilled laborer.

US customs and immigration services is not the people who determine this.

By your logic, “Warehouse Porter” with a forklift certification is not skilled labor, but “Forklift operator” would be a skilled laborer?

Neither is

They need special training, and the title describes exactly what they do, right?

Nope because there are many different kinds of forklifts and not everyone can operate all versions. For example Raymond articulated swing arm lift that’s in my warehouse most people can’t drive because the forks are on the side and it does an entirely different job than what most people think of when they think if a forklift.