Minor note; "Manure management accounts for about 15 percent of the total greenhouse gas emissions from the Agriculture economic sector in the United States."
If you include the emissions from manure management you end with 45% of all emissions emanating from livestock production.
You don't really get to control min-wage laws, working standards or environmental regulations over the long term in a tariff free world. US trade deficits are growing and will inevitably have to be normalized. When that happens the US will have to become a lot more competitive with nations that don't have these standards in place. Stagnated wages are just the beginning and are borrowing time before labour standards and environmental standards are forced to equalize with the East.
If you include the emissions from manure management you end with 45% of all emissions emanating from livestock production.