DECOLONIZATION

What about regaining full independence (soveteignty) through decolonization? This has happened many many times over the past 300 years.

Some examples include: Tahiti, Samoa, New Zealand, Australia, Ireland, Canada, Cyprus, Greece, Egypt, Mexico, Bulgaria, Serbia, Romania, India, Panama, Haiti, Cuba, Dominican Republic, the Philippines, and (ironically) the USA herself. 

There are other examples of sovereignty obtained through decolonizatiom. There is no reason it could not happen here in Hawaii as well.

See:
https://en.m.wikipedia.org/wiki/Decolonization