I wouldn't call the situation in Xinjiang or Tibet a rebellion. There are independence movements of some importance, but AFAIK the majority population in both regions are Han Chinese by now, who have much less reason for separatism.

A comparable situation for the US might be native Hawaiians campaigning for independence, while the majority population just doesn't care. There are probably such groups already, they just haven't resorted to violence enough/encountered a strong enough reaction by the state to become notorious.

You are really overestimating the substance of the native Hawaiian independence movement. The vast vast majority of people living in Hawaii are not even native Hawaiian to begin with. And even most local Hawaiians don't want independence from the United States. It is really a tiny minority offshoot with some specific political grievances. Independence isn't even seriously floated by the majority of these independence folks. The whole idea is just a political and marketing tool except to a very small group of people.

Thanks.

If you or anyone knows, which territories are trying to join a neighboring country?