In broad terms, this is related to the error the USA made. Manufacturing in China was a very profitable deal for the USA. A lot of companies view labour first and foremost as expense, wealth as as the goal, and power in wealth— so it's not surprising as a whole the industry opted to "contract out" labour across the globe.
A lot of power lays in labour though. Money doesn't produce, invent, move, feed, etc— money is only good if someone will take it at the amounts you have it to do that specific labour you need for you.