I'm a non-white non-immigrant in the US. They're not mutually exclusive. That's why I edited my sibling comment to include a source listing that Boise is also very low on the percentage of immigrants in the population, both in the city and metro area (MSA).

https://www.migrationpolicy.org/programs/data-hub/charts/us-...

Well, yes, but it's doubtful that "immigrant friendly" results in that kind of demographics (89% white). I understand it's a correlation, but...