Free trade, it is said by those who support it, makes the whole world richer. Yet it seems, that if things like minimum wage, taxes, or living costs are unqual between countries then free trade would only be advantageous to the poor countries and to the upper echelons of the rich societies.
For example, a factory in Antarctica would have higher living costs for the workers than a factory in China. Hence if the Antarctic peoples were formerly self sufficient, the upper classes would soon transfer all labour to the cheaper countries and the working classes would starve, and most likely freeze to death.
This seems like what happened in the EU where there was free trade but because the taxes were different in each country, it lead to a disaster.
How is it possible to make free trade work for the benefit of all people?