It’s a totally rational response that is also horribly selfish. You kind of see this sentiment any time discussion of San Francisco comes up. A bunch of people who have voted to consistently take funds out of the city will jump to attack it as if it were some hated foreign country. Meanwhile the voters of California restricted local taxation to be massively regressive. The voters or America consistently give handouts to rural places. But when it comes to pitching in and helping a once great city, people would rather sit smug about how smart they are to have expelled their homeless people somewhere else.