Much of the "free trade" movement is driven by mega companies desire for larger markets and greed. The desire of companies to both develop and control future rules has caused them to lobby individual governments into giving up control and becoming subservient to corporate “efficiency.”
This is probably not in the best interest of the average citizen as we can see by surging inequality. Those concerned that a trade agreement with low wage nations will not be a great job creator for America have history on their side. The piece below argues that fair trade trumps free trade!