No its pretty clear biologically regardless of genes ipso facto that there are two sexes. A very small amount so as to be statistically irrelevant are intersex. After sex is determined sure there are millions of influences on genes and gender might indeed be socially or culturally or environmentally influenced. But as far as all the research shows there are 2 biological sexes in humans. This doesn't mean the rights of intersex should be trampled on.

In fact why not just remove sex from passports entirely?! 
Buy regardless of what sjws wish to think there are two statistically relevant biological genders in homo sapien sapien. Maybe research in the future will suggest otherwise, but not up until now.