It’s a shame that Springfield, MA is on that list. It was the home of Smith & Wesson and the Springfield Armory. Democrat/union controlled though.
The US is headed towards bulkinization. The only 2 factors I could possibly see that contributes to this is race and political alignment. There could be others, but it’s highly improbable that they would have this much of an effect.
I forgot the exact state it took place in (maybe CA) that they recently allowed parents to decide which schools they sent their children too. They became racially segragated within a year or two.
What’s next? US splits apart?