It's still pushing a button on a CNC machine.
There is no skill to modern machining, there's measuring and resetting when it gets out of spec, there's knowledge of running that particular machine.
It's not like me on a watchmaker's lathe cutting a staff for an old watch or a one off shop on an old lathe making parts for a model T. And those actual skilled machining jobs for single pieces don't charge like that.
Could I jump in and do my brother-in-law's job without training? No, but with training I could. Could he jump in and do my job even with training, probably not.
If we went back to the days when factories weren't all roboted and computerized my job there would be above his pay grade. Now my job there is replaced with a computer designer, his job is a keypad and a micrometer.
If they would put a more user friendly GUI on his machine anyone could do it without training.
I highly doubt if child labor is used in a metal machine shop the parts and tools are too heavy. Child labor is more for textiles, toys and fireworks. If you buy or watch most fireworks you're the one supporting child labor.
If you have direct knowledge of child labor in China turn it in. It is illegal in there.
I understand you have no idea how manufacturing works, have no idea what something that is well made and machined looks and feels like, nor can tell the difference between high quality metals and mystery metal, so will leave it at that. Someone actually got it when they said to look at a replica and original under a 6X magnifying glass...