Re: A false start
You could chew up shipping, but those shipping companies are probably more capable of exerting political pressure than even a country like China.
And it amounts to the same thing, its applying financial penalties for stuff not made here creating protectionism.
Is protectionism bad? That depends on whether you are making tons of money from exploiting wage differentials on a global basis.
But do understand when you have those jobs back, you won't be rolling in the cheap consumer goods that you imagined you might.