From Noah Smith in "Free Trade With China Wasn't Such a Great Idea for the U.S." for BloombergView, who says the public has been exactly right about the consequences of trade with China:
The study shows that increased trade with China caused severe and permanent harm to many American workers:
Adjustment in local labor markets is remarkably slow, with wages and labor-force participation rates remaining depressed and unemployment rates remaining elevated for at least a full decade after the China trade shock commences. Exposed workers experience greater job churning and reduced lifetime income. At the national level, employment has fallen in U.S. industries more exposed to import competition...but offsetting employment gains in other industries have yet to materialize.
... [T]he public might have been wrong about free trade in the 1980s and 1990s, but things have changed. Popular opinion seems to be exactly right about the effect of trade with China -- it has killed jobs and damaged the lives of many, many Americans. Economists may blithely declare that free trade is wonderful, but our best researchers have now shown that public misgivings about these smooth assurances have been completely justified.