Thanks for the advice, @Antst, but you seem to want to perpetuate the #bekind narrative and suggest that it's a simple case of one nice person wanting to change the rules and dictate to others how they must validate and affirm their beliefs and one or more nasty bigoted people who don't want to be forced to go along with it. They are 'special' and unique whereas the rest of us are just (as a PP brilliantly put it upthread) walking stereotypes. Every single one of us is non-binary, but we don't need to find special labels to replace the standard grammatically-correct terms used to identify us by the sex we happen to have been born.
I would never go out of my way to upset somebody, but equally, I don't wish to be told how to think and expected to deny plain reality. As we've discussed on countless MN threads, somebody wanting to start dictating to others that they must use grammatically-incorrect pronouns to refer to them when mentioning them to others is frequently the first step towards claiming that they ARE that sex. Once you play along, it's taken as confirmation that you do acknowledge them as something that they are not and then we all see where it ends up.
Granted, a female identifying as 'male' and then expecting free access to opposite-sex spaces is not as damaging/dangerous to others as the opposite way around (although it can be to the person in question); but you can't really accept one without the other.
I'm happy for anybody to believe whatever they want to believe, but I take issue with being expected to share, affirm and endorse their belief, when I most certainly do not.
Incidentally, how do you stand on people questioning their race or age and wanting to be officially recognised as one that they are biologically not?