The peerless Dean Baker points out that the Korean trade deal doesn't free trade. Many trade barriers remain, and some -- like patent and copyright protections -- are increased. He writes
...the trade agenda of the United States had been about reducing barriers to trade in manufactured goods with the purpose of putting non-college educated workers in direct competition with much lower paid workers in other countries.
Baker has a better description of the Korea trade deal: "one-sided protectionism."