On most manufactured goods the labor component is not as high as people think. Assume an industry where the labor portion is 30%. By a combination of a lower dollar value as well as better efficiencies and better automation it is not unlikely to end up with a product which is perhaps within a 15% difference of a comparative Asian one. A 15% difference will easily be marketable for a better quality product. (If you factored transportation costs it even looks better).
I don't mean slavery, I believe in a living wage, but I am sure if one does the sums there are a lot of industries that could be rejuvenated if policy could be redirected properly.
One of the problems of the US is its large internal market which resulted in the average US firm not to be geared for exports. This also needs to be addressed. Let me give you an example, I worked in Dubai three years back (large construction industry) on an average quote for machinery that typically goes into large buildings say Fire Pumps the range of prices would be:
US 100K (non-negotiable)
US 90-105K (European very negotiable)
Asian 85K (negotiable)
Order placed normally with European firm for US 88K
Any factory with not a full order book could marginally cost the products and have a full order book.