Good or bad, converting craft work to production work is not making the craft worker more productive, it's eliminating the craft worker.
The unskilled operator's position is also precarious, as you point out, but while it lasts, it's a different and (arguably) less satisfying form of work.
The LLM is not a table saw that makes a carpenter faster, it's an automatic machine that makes an owner's capital more efficient.
For cars that are out of warranty, it is an advantage, as the car will be scrapped sooner, thereby opening up a hole in the market that needs to be filled with a new car.
An advantage to the manufacturer, that is. For the consumer, it leads to never ending car payments for life, or surprise bills that approach the cost of a replacement vehicle.
The unskilled operator's position is also precarious, as you point out, but while it lasts, it's a different and (arguably) less satisfying form of work.
The LLM is not a table saw that makes a carpenter faster, it's an automatic machine that makes an owner's capital more efficient.