Why? A stable political system, great economic markets, oceans of skilled and professional labor. Reliable and extensive infrastructure, proximity to natural resources and extensive transportation, R&D and educational resources, etc, etc.
You need to do your research on manufacturing. You may not see OEM's of small consumer items or consumer electronics coming back because of high labor cost and low margins but manufacturing is doing just fine in this nation in big ticket items like autos, aircraft, shipbuilding, automation, heavy equipment, primary materials (iron, steel, aluminum, copper, glass, ceramics, cement).
These industries make products with large margins and where labor needs have decreased due to advances in technology they are gained downstream by the vast logistic and supply networks and service partners.
Like I said you need to visit one of these modern manufacturing facilities and see how thing have changed from regional integrated operations that were largely self sufficient but costly to operate to modern manufacturing with it smaller specialized plants that produce more but are not integrated but rely on large and sophisticated supply chains with exquisitely timed logistics systems that provide only what you need, when you needed. No more do you see a vast amount of a manufacturers capital locked up in inventory which results in greater cash flow which means more opportunity to invest capital productively instead of it sitting in a warehouse.
Your view on American manufacturing is not informed and is a self fulfilling prophecy for decline.
