I recommend that you take a look at the economic literature on the roles of export led industrialization, currency manipulation, and high levels of US taxes and regulations in the decline of US manufacturing. And as a basis for optimism, cheap natural gas due to fracking may radically benefit the cost calculations that underpin US manufacturing while Trump era reforms reduce the regulatory and tax burden.
I have. I suggest you look at the role of global labor arbitrage as the real reason for off shoring. You may learn something.
If I have to choose between sanctimonious Free Traitors&!513 and the Reagan Democrat blue collar workers of America I will choose the legion of Reagan Democrats every time. Really there is no common ground between Free Traitors and the protectionist. One has to leave the party. I say the globalist can go pack sand.