The cost of being shut out of overseas markets for soybeans, beef, pork, chicken and more will be in the billions. Once those markets are gone, they will be difficult to recover. Commodity prices continue to drop, and good weather suggests an excellent crop is in the making, which will drive prices further down. Brazil is ready to step in with increased soybean production, and China has already shifted its purchasing power there. Rural America is about to undergo a major demographic shift. President Trump didn’t start it, but he has accelerated a crisis that might have taken a generation or two to play out. Now it might take only a few years.Rural America is going to be hollowed out very quickly. Farms will become consolidated, and towns that are already in trouble will certainly die.Iowa’s farmers are aging, and younger farmers aren’t replacing them proportionately. Sixty percent of Iowa farmland is owned by people 65 years or older, and 35 percent of farmland is owned by people 75 or older. Another casualty: our community banks. As farms get larger, farm loans are less likely to be local. A big operation with farms in dozens of counties that maybe even cross state lines probably won’t use local banks for credit. At a certain point, populations won’t be enough to support rural hospitals and clinics, and they, too, will be gone. Rural hospitals are one of the major employers in the community. Even if you have a good manufacturing company in town, if you lose the hospital, they won’t be able to attract the employees they need.