Free trade will lead to socialism.
Pressure on workers to get “re-educated, re-trained” will cost them money, leading to pressure to socialize all education, including higher education, and everyone will be paying for higher education, and thus more socialism.
The workers who can’t find decent-paying work, will vote for those who will give them $15/hr wages and higher, leading to either wage inflation or more robots or a mix of both. With enough people out of work, there will be people voting for a universal guaranteed income (even if you don’t work ever), and thus more socialism.
Too many Walmart workers with low wages and crap jobs (compared to manufacturing) ends up creating more people on welfare, and thus again, more socialism.
Pretty much all branches on the “tree” of globalism lead to the root, which is socialism. And all of the globalism, free-trade, and socialism will lead to destruction of culture (including American culture in values), abandonment of the Republic and values in favor of more “international values”, e.g. disarmament, free speech, etc.
That pretty much encompasses Karl Marx's argument.