The Newspeak definition of gender was implemented by a pedophile plastic surgeon, who performed the first “sex change” surgery - Dr John Money.
The more we learn about it, it appears that sexual deviancy (perhaps in all its varieties) is a kind of bottomless pit of insanity. These people start out dabbling and then get drawn in deeper and deeper. What might start out as teenage exploration (even including just light heterosexual porn) can lead to more and more extreme perversion/insanity. It's like a portal into the realm of evil.