The problem, as I see it, with your thesis is that most Hawaiian families are hapa something, haole? If you say for someone to be considered for citizenship they must have some percentage of Hawaiian blood within them eventually there will be very few people to populate the country. 

Didn't you hear the story of the wahine who was going to get evicted from her home of more than 20 years because all of a sudden they decided she's got less than 50% Hawaiian blood? That kine system don't work all that good.

Further if one of your countrymen were to fall in love with one haole and go off and get married and make babies and then 20 years later they break up, what then about the haole girl? Does she now lose her citizenship? Did she ever get citizenship? What about the kids?

And of course what about the haole folks that would like to be citizens? Does your vision have no room for them?