Buy a large farm here in Oklahoma, farm until money ran out.
Kind of sad, but true more times that not.
Don't worry, we're safe. The only time those people (e.g., Californians) move to Oklahoma is when they're forced to due to a job transfer. They never even think about all of us in the "flyover" states, as they call every state between New York and California, any other time. Hope it stays that way.
Yeah I don't see any reverse Grapes of Wrath happening anytime soon.