"Buy American" Ignorance
This excerpt from an article on Americans abandoning U.S. automakers provides an idea of just how ignorant one would have to be to believe that "buying American" makes any sense:
Justin Watson, a 25-year old laborer and student from Beaumont, Texas, says he is fiercely loyal to American cars.
"My great-grandfather, grandfather and father fought against these people," he said of countries that are leading competitors of American automakers. "We're killing ourselves by buying their cars. I drive a Dodge truck, and always buy American."
(Internal link mine)