This isn't exactly accurate ....true the US buys about 75% of what China produces as goods but I can promise you many many many food ingredients and chemicals that just aren't made here anymore. They ran the us out of the market on hundreds of items to the point we don't even have people making those items in the United States today. It would cause some serious heartburn if we shut off the spigot. They are already raising prices do to the new environmental regulations in China (most haven't made there way into the markets yet)
The problem is that we let them run so many companies out of business then we made doing business in the U.S. more difficult so much so that we just quit producing a lot of things and shuttered factories. Getting plants up and going again and making products would take something close to a war effort should we enter trade war with China. But if we are going to enter the trade war with them we need to play nice(er) with Canada and Mexico .
