We live in a capitalism. If something makes capitalistic sense it happens, otherwise it doesn't. Stuff will not be manufactured locally at great expense when it can instead be imported for free.
The absence of capital controls is a political choice that people appear to believe is just a law of the world.
If there were capital controls then local manufacturing makes more sense.
It would kill the US stock market so it's unlikely to happen, but personally I don't see how unrestricted capital and restricted labour is anything but a recipe for disaster (the consequences of which we've seen in the US and Europe since the financial crisis).