Great and insightful comment. I encourage everyone to go on from there however. Inquire as to why these predetermined categories are so important to some folks. Ask why these researcher's feel the need to prop-up such categories by installing peter-meters on people and calling them liars for not meeting the researcher's own erectile expectations concerning bisexuality.

I certainly see in recent decades a gay political leadership that promotes not sexual liberation for all, but the devisiveness of identity politics. "Scientists" picking up on these trends search for wimpy hypothalami, or whatever else they can grasp at to lend support to these cultural ideas. Instead of questioning social categories, they suck them up whole and then go off trying desperately to do research-- any research-- on them. Eventually, given small enough samples, random chance, and/or questionable techniques-- they come up with something, and the whole fucking society heaves a collective sigh of relief: our categories are "right" after all!

This is exactly the same error queer activists have been struggling with for more than a century: cultural/moral definitions and categories that are promoted as "objective" and "science."

Keep up the good work of calling these "scientists" out, not for their mixing science and morality (that is inevitable) but for not being up-front about it.