Business men have always screwed some laborers out of a job using depressed wages from labor-glut in tons of low-skill fields.
The crux of the issue now is that we're globalized enough to outsource jobs to certain places but haven't : adjusted our economy for the fact that most manufacturing is being move to Europe (for high precision shit) or China/India (for cheap low skill shit).
Anything done in th US still is done so for technological reasons like custom machinery, necessary technicians or simply being a small operation that would rather have an eye on the product directly.
The issue is that the reverse isn't true, very few countries will ever outsource to the US and that's for two reasons:
In some cases, the company is already based in the US so there's no need.
In other cases, the governments make conceited efforts to kee the labor outsourcing going in one direction to kee their economies flush, so it's largely artificial.
The big example is China's devaluing of their currency every time their marginal growth rate goes under 5%