Also, anything companies build inside the US (factories, supply lines, etc.) just becomes an economic hostage for a Trump to use for further rounds of extortion.

So it's not just that the policies are (A) counterproductive and foolish and (B) changed on a whim and (C) have no long-term foundation and (D) are changed for corrupt reasons... but even after all that, (E) the corrupt person "making deals" is incapable of honoring them.