I agree with much of what you say, however looking at our trade deficit alone and the fact that car parts are made abroad (using your example) it would take time to ramp up manuf. here to make up for the shortfall.

Also massive currency printing would most certainly cause hyperinflation. Currency velocity would skyrocket due to hording.

And normies would riot because their daily lives would be disrupted (i.e. waiting in line all day for rations).