That's one of the reasons I left the last place I lived. I was in Peoria, IL which was the home of Caterpillar corporate headquarters. They have a very large corporate office and ton of factory operations around central, IL. If Cat up and left that area is another rust belt victim. Well...just recently they announced they are pulling corporate from Peoria and moving to Chicago. They were in Peoria for 90 years. It's "Only" 300 corporate jobs, but those are very high paying incomes that inject a decent amount into local property taxes in the area. Plus you have the travel brought in from execs and other visitors to the headquarters. They are slowly divesting manufacturing from the area and moving that. Eventually they'll withdrawal most of the production and there's another hole of 12,000+ jobs plus all of the ancillary support that it provides. Peoria will be a shell of it's former self. I was expecting it to happen and left the region before it did.
That's just what is happening across all of much of the midwest.