This is really the crux of the issue: control over local land. It doesn't really apply on a contiguous mainland (though I'm sure Native Americans would disagree

This is really the crux of the issue: control over local land. It doesn't really apply on a contiguous mainland (though I'm sure Native Americans would disagree, and to a lesser extent Portlanders and Seattlites), but the issue is becoming apparent in these small islands. It is also becoming an issue in Hawaii, where relatively poor locals are priced out of housing by relatively rich mainland transplants. There are some Hawaiian activists who would prefer their island be independent, though I think unicorporated and have some form of commonwealth (like the Northern Marinaras) would be more realistic. In the end, sovereignty is a spectrum.