“… [I]n general, the protective system of our day is conservative, while the free trade system is destructive. It breaks up old nationalities and pushes the antagonism of the proletariat and the bourgeoisie to the extreme point. In a word, the free trade system hastens the social revolution. It is in this revolutionary sense alone, gentlemen, that I vote in favor of free trade.”Marx knew what he intended, and the people who deliberately conflate the free market and free trade know what they are doing too.
— Karl Marx, 1848
Marx was wrong about Communism but he was dead on about the road to get there.