I think it will depend on how bad the shtf scenario is. Economic collapse would probably stop them from coming in here in Texas but the ones already here would not go home. If it were a civil war they would at least flee from war zones if they didn’t go home. I would guess you might see the first 50 to 100 miles North of our border over run by cartels and criminals trying to gain ground. If it is nothing worse than these two scenarios they will just keep coming unless we remove the free incentives to come. That is the only reason they are here anyway.