The most important statement by Karl Marx about the labor theory of value and economics is in Das Kapital, first published in 1867. One hundred and forty‐four years later, its key “missing element” was brought to public attention, very surprisingly, in the South Park episode “The Last of the Meheecans.” This episode weaves a tale of immigration and labor through the story of Mantequilla, aka Butters, aka the leader of the Great Migration to Mexico of 2011 in a way (...) that highlights how ethnicity and race, specifically, affect the “value of labor‐power,” a central part of Marx's theory. Marx best known for Das Kapital kept issues of nation, ethnicity, and race mostly outside of his analysis of the value of labor power in an explicit manner. But it's clear that he treated such value as socially determined. (shrink)