Transgenders ("Kumu Hina") and even transracials (Rachel Dolezal) have gotten huge publicity which causes more people to "come out."  This causes problems for researchers who use Census statistics to analyze biological causation of medical and social dysfunction.  The problem is especially severe with large numbers of multiracials (like "Native Hawaiians") who mark Census forms as though they are solely of their favorite race, even when that's only a small part.  One result: Official Census data counts more than 80,000 "pure Hawaiians" living in Hawaii!!  The solution is to bifurcate the race and gender questions.  (a) Check the boxes for all the races you know are part of your biological ancestry; and (b) Check the box for the race you feel most closely affiliated with on account of upbringing or current lifestyle.  The gender question should be similarly bifurcated between gender at birth vs. aspirational self-identified gender.
For detailed analysis see
http://tinyurl.com/kgssz9o