If you want to get some idea of why so many Americans are supporting Donald Trump and/or Bernie Sanders, watch this video of the management at a Carrier manufacturing plant in Indianapolis announce plans to lay off 1,400 workers and move operations to Mexico.
I actually find the reaction of the employees remarkably restrained.
The union representing the workers had previously agreed to a two-tier wage system, with newer workers earning about half of of what longer-term workers take home. It wasn’t enough.
The disappearance of decent-paying union jobs for non-college graduates, on which it is possible to raise a family and live with some dignity, continues.
Update: On a related note, from 2012:
Senate Republicans filibustered the Brings Jobs Home Act… The bill, which would eliminate incentives for companies to move jobs overseas and create incentives to bring jobs to the United States from overseas, was blocked by 42 Republicans; Scott Brown and Olympia Snowe voted with Democrats to advance it.