[idle_processor]

Lower property values and potential influx of people from a different social class.

The parent post may've meant to imply race.

[ponyfleisch]

nope, not meant to imply race.

cultural factors may play a role, of course. quality of life is better when you have more things in common with your surroundings. this is about preferences, not perceived superiority though. at the very least you'd want your kids to have a common language with their classmates though.