Imagine seeing American wealth increase dramatically over the past several decades, see tax burdens drastically reduced on the top 0.1%, and see almost all of that drastic increase in wealth go to that 1%, and not be able to come up with a solution other than “well, against all evidence I think trade is zero sum”.

And worse, your solution then is tariffs, which are little more than a sales tax which are disproportionately paid by the poorest.

The business-as-usual multi-international neoliberal supply chain model wasn't benefiting a vast number of Americans with no solution other than "don't complain look at these metrics we made up, you're doing great, don't be upset we are making billions while you struggle to afford to fix your teeth or fix your car". Something had to break and break it did.

If you are so non-zero sum, what would you suggest as the fix for those issues if we kept the old model?