The immigration patterns that are ordinary everyday life in my California community literally terrify white "conservative" people in other parts of the U.S.A..
I grew up in a place that was 99% white and kept that way by overt and illegal harassment, redlining, and work discrimination. Surprisingly that was invisible to most of the people living there. If you'd asked they would have insisted they were "colorblind." It never occurred to them to ask why all their neighbors were white.
My wife's dad, who is largely Native American, his family from the U.S.A. / Mexico border region, recounts "sundown towns" where guys like him were routinely beaten up by the cops if they couldn't prove their business there. He grew up as a migrant farm worker and remembers entire towns that were simply closed off to farm workers. The farm workers weren't even allowed to walk into town to buy groceries. Leaving the camps was asking for trouble.
My wife and I explicitly decided not to raise our children in white U.S.A.. The only time we've lived in a majority white neighborhood was her first year of graduate school. As a consequence our children, now adults, are comfortable pretty much anywhere they go. Their friends represent a full spectrum of humanity.
As a kid raised by leftist parents (my parents are artists who were there for the day jobs), I knew intellectually there was something seriously "off" about the town I grew up in, which is how I ended up teaching science in a big city where no more than 20% of my students were white. But I'll confess it took me a few years before I was fully comfortable living in a non-majority white environment.
If I can presume to extrapolate my personal experience to places like the Liberal White American Midwest or Liberal Sweden, they're intellectually inclined to embrace diversity but are not yet comfortable with it. This leads to all sorts of frictions and divisions that the right wing exploits.
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