If, at an earlier stage of capitalist development, "workers of the world unite" seemed an impossible dream articulated by labor's prophets such as Karl Marx, internationalization of capital has now made that dream an urgent necessity. As capital and labor are the cornerstones of capitalist production, their respective organizations and institutions evolve more or less apace, over time and space. Thus, when capitalist production was local, so was labor: carpenters, shoemakers, bricklayers, and other craftsmen organized primarily in their local communities. But as capitalist production became national, so did trade unions. Now that capitalist production has become global, labor organizations too need to become international in order to safeguard their economic rights against the woes and vagaries of capitalism. (For a more detailed discussion of international trade unionism, as well as of the need to eventually going beyond trade unionism, please see this article of mine.)
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