In the idealized free market, higher US wages would quickly push wages up elsewhere by a near proportional amount. China and Mexico's workforces have peaked and we're shooting where the duck was.
That would actually be a huge benefit to US "agriculture" as we have the pre-eminent position in exportable agricultural surpluses.
I'd suggest that US trade policy should focus more on discouraging destructive environmental (no point in encouraging China to continue to burn most of the world's coal), labor and foremost currency practices.
The US has a huge responsibility in currency matters that no one else is in a position to do. We can stop a devaluation race to the bottom if we place countervailing dutues against other countries if they move out of price bands.