Kamal Ahmwed says in this BBC report that the WTO has belatedly recognized that the losses from world trade for workers in industries that are hurt can be significant, and public sentiment matters especially when there is unfair trade. He visits a small Pennsylvania steel town of 40,000 where the population declined to 7000 after closure of steel mills. This is why the WTO now recognizes that the gains from fee trade are "often uneven," and "may have led to rising inequality."
Even if the overall gains from free trade are significant as Kamal Ahmed points out the downside and losses are still smaller but significant, and concentrated in certain regions such as the midwestern U.S. or eastern U.S. can lead to public anger that led to the change in administration in the U.S. in 2017.
Original article 4 minutes, gist 1 minute