Eh, the disappearance of manufacturing jobs in the U.S. is not because someone in 2016 is buying cheap shit at Walmart. It's because Walmart decided to start sourcing from overseas in the late 80s/early 90s to cut costs and grow revenue because there were no other (at least easier/less risky) ways to grow revenue. Your grandma didn't make that decision. Neither did George Bush Sr or Bill Clinton. Walmart's corporate leadership did. To the degree that politicians made their decisions possible, it was only after lobbying efforts from companies like Walmart to grease the wheels and make "globalization" possible.
Over the last 40 or so years, that corporate "globalism" got consumers hooked on cheap prices like a pusher giving a junkie a cheap hit to make sure they come back for more. That's where your grandma comes in. It has come at the expense of jobs held by consumers while those corporate CEO's became billionaires. There is only one problem. It doesn't take someone with an economics degree to see that the side effect of eliminating your consumer's means to consume makes this an unsustainable way to increase corporate value. And so the billionaire CEOs are in tough spot today. They can't squeeze more blood from the low and middle class turnip to keep increasing the valuations of their corporations so as to maintain their position as billionaires. At the same time, unrest is rising in the economic classes beneath them that are having their jobs eliminated, classes of people who are surviving on the cheap goods that were only made possible through the elimination of their jobs.
So what's a billionaire CEO to do? You use some of your billions to blame it on the getaway driver -- the government. You buy the media companies that provide the windows by which the common man understands the world outside their direct observation. You use those windows of information to focus their ire on the government and people they already distrust. You use it to blame your enemies and to turn the different layers of the lower 98% income distribution against each other. You capitalize on their desperation, their calls for radical change to get one of your own elected President. A special kind of guy who is skilled as a wrestling heel. Someone who gets as many people to hate them as love them. Someone who can keep people's attention on their outrageous acts while other steps are taken unnoticed. Steps to erect an oligarchy and kleptocracy where your economic status as a billionaire CEO is ensured. Ensured beyond the point in which it can be sustained through the free market capitalization of an exhausted resource -- the American consumer.