Comment by retrorangular

To what benefit though? People in the US currently provide advanced services such as software sold to people everyplace, and people in developing nations are manufacturing cheap goods, sold to people everyplace.

After tariffs, people in the US are (maybe) manufacturing cheap goods, sold mostly only here, and developing nations continue to manufacture cheap goods for the rest of the world, and fewer people are providing advanced services such as software.

Overall, the world just becomes poorer and has fewer useful services provided. Yes, the US becomes less dependent on the rest of the world, but the rest of the world also becomes less dependent on the US. Material wellbeing of everyone is worse off.

But that's assuming all went to plan. In practice, it's hard to see how they would even achieve bringing manufacturing here through tariffs. Crashing the stock market is a sure-fire way to ensure the next administration (3.5 years away) will revoke them. You could install a dictatorship, but that makes it even less likely for companies to invest in the US. In practice, this will likely just make Americans poorer, but not bring any meaningful amount of manufacturing jobs back. Pretty much the epitome of "cutting off your nose to spite your face."