On this coast, the New York developers buy up coastal property....then the tax rate (since this is tax-hike-paradise) goes skyward. So those fishermen/lobsterman find that their cute, coastal home is sitting on very, very valuable property and cant afford the taxes.
Thankfully the harsh winters send em home most of the year. But you can always tell when the beautiful people are "back". Last year, they tried to push for a "No construction from May to Sept" request....because gawsh, ordinary people building was just awful on their pretty ears. Needless to say, the local City Council shot that down.
So while we dont have your mass exodus, we do have the "utopians" from the city crawling here, telling us heavens how to live.