Spwawl is the term used for "I got mine", now screw you, and everyone who might come after you.
So what part of "mine" is so confusing? It is my town, and I expect new residents to assimilate- not take over the schools and push their new agenda all over. These are typically not people seeking refuge, they are wealthy folks invading places that were poor, and happy to be poor.
It's classism. The only way they can feel superior is by building mansions next to shacks and letting their kids out to prey on the neighborhood.