You are a gross ignoramus.Labor is not a commodity. Labor is people doing work. Labor includes CEOs and accountants and janitors and every other person who contributes something toward the production of goods and services.
Owners consider labor a "cost", because the income created by the workers is divided between them and the owners. The less that goes to salaries, the more more there is for profits. Their goal, therefore, is to get as much work as possible out of workers, while paying them as little as as they can. If they could reduce the income of ordinary Americans to the level of Chinese factory workers, that would be an advantage (to them).
So labor is a "cost", but only if you look at it purely from the point of view of people who own things, but don't work themselves.
When you look at it from the perspective of the interest of the country as a whole - rather than strictly from the perspective of the rich - a country with a healthy middle class is better than one where a tiny minority consume more and more, while the people who actually do the work struggle harder and harder for less and less.
Labor is a commodity. Just like raw materials. If owners can lower their cost of raw materials, they will and save money. If they can lower their cost of labor, they will. US workers make more than CHinese workers not because owners were somehow more beneficient but because they are more productive. Low wages equate universally with low productivity.
American workers make more not only because we're more productive, but because the US has better and fairer laws.
Plus, we have unions.
Workers are not "just like raw materials". Raw materials don't do anything. They just sit there. They don't create, or build, or manufacture. Raw materials are more like the leisure class.
Except that raw materials don't have families. And they're not people.
There are no laws that mandate what most workers make, except the law of supply and demand. Today only about 28% of private sector workers are unionized. So unions dont have much to do with it either.
Workers just sit there too unless managers give them something to do. Kind of like democratic voters and ward bosses.