For people who move to a foreign country (and it's usually a ~ cosmopolitan~ city at that) and then eventually move back citing "cultural differences" - like what differences are that stark that you can't live with them? Oh no the people there grew up with different stories than I did how can we get along? I'm i being too "I'm built different"? Is it a dog whistle for racism? What's up with it?
It can be racism, but sometimes you miss the culture you grew up in, or more oftenly your family.
But they could say that instead right? That's valid
but then you have to admit to not being the world traveling individualist you claimed to be
Eh, depends quite a bit. I knew Americans that moved to Germany and came back due to "cultural differences". It seemed that some members of the family didn't want to learn a new language and along with more minor differences.