I rarely agree with you Mr Conklin but I do appreciate your correct analysis on this particular point. 

The issue isn't just the Census results. All ongoing Federal studies follow the same insufficient race/ethnicity form of inquiry, the effect improperly skewing any result especially concerning the race question. 

One example is the National Survey of Drug Use and Health, a yearly Federal health study. It can be fairly argued that native Hawaiians were previously underrepresented in this and other Federal studies. The current "preferred self identification rule" or one drop rule, as you put it, does give inaccurate results that directly affect funding of particular programs supposedly targeted at specific racial or ethnic groups.  

I agree with your bifurcation proposals if only to give more specificity and accurate results to all Federal studies.   

Imua Hawai`i Nei