The long short of it is, we need to stop trying to resurrect American manufacturing and accept that American fabrication has taken its place. For China atleast. The only countries it would have a chance working on are ones with comparable employee operating costs to us. You can't make tariffs high enough on China imports to out weigh the costs of domestic manufacturing. 9 times out of 10 the cost of the material is more than the cost of a finished imported product from China.