A few years back I read a projection where there would be few large cities left in the north of the US because of heating costs; as our economy changed there was little use for many of these cities anymore.
Wasting massive amounts of money to support (feed, clothe, house - including heating) huge populations of idle people doesn’t make sense - yet they imported foreign populations into those cities specifically to counter the flight of the makers and their employers. Somalis in Minneapolis and Maine are obvious examples, but they are trafficking Hispanics throughout the north as well (many years ago Denver started having large Cinco de Mayo celebrations).
The bigger problem for the rest of us up north is they will ban wood heat and force everyone into the city, which is most of the Agenda 21 thing. VIrginia is not too far north but if they wanted to force me out they probably could.