Sorry, wrong analogy: Let us assume there is a Flat Earth Society, and a group who declare they are Martians, and maybe another group who believe the world is run by lizards. If they have websites, publications, meetings, then the fact the groups exist is not in doubt. Yet virtually nobody outside their membership lists would give equal credence to their ideas and, and to evidenced facts. The earth is not flat, and we do not use whatever language the Flat Earth Soc members would use to describe ourselves: Perhaps they call us 'Roundists' or 'Flat-Criticals'
We do not allow them to make us use their language. We are NOT Roundists. Nor are we, who do not belong in the Martian Society, prepared to call ourselves Mars-Critical.We certainly would not agree to obey anyone wearing green face paint and tin foil costume, and demanding we call him a Martian, and forcibly enter his absurd fantasy. If he is same-sex attracted, he can call himself a gay man and can legally marry a same-sex partner, so he need not pretend to be a woman. If he wants to pretend to be female, because he is an autogynephile fetishist, he is a danger to women and children, and must be legally obliged to keep his private fetish private, doing whatever he chooses alone or with consenting adults. Never in public.
Nobody Can Change Sex. Every Chromosome and cell and 'wiring' of a male body and brain stays male from the moment of conception. No 'transitioning' is possible. No amount of surgery turns a man into a chicken, or into a woman.