Ideas, capital and equipment are all essentially fungible. Therefore if you want to out-compete a guy making eight dollars a day, you'd have to be twenty-four times as productive to make $50,000 a year. And that includes all your benefits; whether health care is provided by the individual, the employer, or the government it must still be funded by the individual, the source of both employers' and government's wealth. Does anyone really think we can be twenty-four times as productive as Mexicans, or Chinese, or Indians?
Free trade is great because we get stuff more cheaply, but a nation cannot sustainably consume more wealth than it produces. Right now the USA consumes far more than it produces, making up the difference with credit, and we have no clue how we might ever ween ourselves from that credit let alone pay it back. The route we are traveling leads inevitably to a large wealth differential, which means we either divide into a caste system like the one India is trying to outgrow, or we use the Democrat ideal where government claims all money and then "redistributes" it. This latter also leads to a caste system, with a small, highly paid class of Mandarins of rich resource owners and politicians and a large servant class subdivided into a relatively small upper sub-caste (i.e. government and non-exportable jobs with scarce skills) and a relatively large sub-caste of low level servants and unskilled labor. Personally I hate either of those choices.
Unless we can find some sort of wealth generation mechanism that builds a large middle class and that can't or won't be exported to other countries, then we are headed for serfdom one way or another. The race to the bottom might be exciting and a fun ride, but once we're there it's a long, hard climb back out.