You misunderstand me. The US
is making shoes-- just not as many as it imports from Vietnam or China. In fact enough shoes get made locally to export about 1$ billion worth of them (while ~$20 billion are spent on imports).
But I don't see the point in throwing billions of dollars from taxes at this industry just to make all those shoes here-- that is stupid (because the jobs that would create are not gonna be very desirable, they are gonna drive up costs all over by competing for labor, and that kind of protectionism is gonna invite retaliation).
The situation is very similar for a lot of industries.
I also think it is extremely unhealthy to baby an industry long-term by isolating it from competition like this.
I'd be totally on board if there was like 20% unemployment in the US, and this was a short term plan to give those people work/income.
But that's not it. This is in my view really bad policy driven by emotional arguments, and actual numbers, expected outcomes and historical precedent (for "I know better than market economies what ought to be produced") all heavily weight against this.
I'm very confident right now that the whole "20%ish tariffs for everyone to balance trade deficit with everyone" approach is gonna be walked back or lead to abysmal outcomes, and people should have realized that from the start.