That's a good point, calling for reform in British/Hong Kong relations should also call for reform in US/American Samoan relations. While Hong Kong is more pressing at the moment, the purgatory-citizenship of American Samoan people is shameful. How can they be allowed to enlist in the military but they're not allowed to vote for the person in charge of the military?

Are they able to declare independence or vote for supporting statehood?

There's a great NPR episode about this. Some interesting laws there, as an American citizen, you can't buy property in American Samoa if you're not Samoan.