This image shows the damage that can be done to employees when new technology transforms the way work is done.
Self driving vehicles are coming. We are not there yet, but five years ago a self driving car wasn't even a thing. The most common job in America, the truck driver, is about to go the way of the horse and buggy.
Yes there will be new jobs created servicing and manufacturing these new self driving vehicles, but the skill set needed for those jobs do not intersect with the skill set of a truck driver. And along with the truck driver, what happens to the waitresses and cooks at truck stops across America? What happens to the landlords who lease the buildings for the truck stop? What happens to the CB radio manufacturer?
Technology is wonderful, globalization is wonderful in the long run, but society must find a way to ease the economic pain of those displaced by technology or geography in the short run.