[mech422]

>>Or, take another angle. If the US can no longer import vital goods, what do you think will happen? Will the goods magically stop being vital? Will we sit on our hands for several decades and wait for the problem to resolve?

No - consumers will just eat the cost like they did during COVID.

>> Or does the market respond to a need and rearrange itself to provide as profitably as possible?

  rearranging itself will mean leaving the status quo, and passing the cost to consumers.  Do you think companies are going to jump to spend millions of dollars and 1 year+ to build factories to work around something that might change in 6 months, or even 4 years ?