That's just a matter of anatomy and reproductive tracts, and people could choose whatever gender they want if they weren't forced by society into categories of either male or female the way South Africa used to force people into categories of black or white.
E doar ceva ce ţine de anatomie şi de organe de reproducere, iar oamenii poate ar alege ce gen ar dori dacă n-ar fi forţaţi de societate să fie ori una, ori alta, aşa cum în Africa de Sud negrii erau separaţi de albi.