The Kingdom of the Hawaiian Islands does not need anyone's recognition; it was never extinguished (under international law) and continues to exist today!  Most people do not even know the true history of these islands;and, therefore have a skewed perception when voicing their opinion.  King Kamehameha united the islands with the help of Britain at a time when each island was being influenced by different foreign countries.  This move to unity was followed by actions that eventually let to the world wide recognition of Ko Hawai'i Pae Aina (Kingdom of Hawai'i) as an independent neutral nation/state in 1843.  

These island kingdoms existed for centuries before the European influence.  I really don't see how recognition by the United  States has helped or even is helping today any of the first peoples of that continent!  In fact, just the opposite as the "seat at the table" means that any changes require an Act of Congress and we all know how easy that is to obtain!