tldr: the trans and non-binary folk want complete control of language, acceptance isn't enough
Name changed just in case anyone recognises this situation.
I've just come back from a lovely music and dance weekend event run entirely by volunteers. It's pretty small and has a regular group attending but anyone can buy a ticket.
It's one of the most welcoming environments possible to imagine. In terms of "dress how you like" there's no judgment at all, wear a sparkly top and flowing skirt, or shorts and t-shirt etc etc whether male or female it's all fine.
In terms of trans, there were two men with breasts, one young woman with a double mastectomy and several others who I guess would call themselves non-binary. I didn't discuss any of these identities as it's not relevant - the focus is on the activities.
All the dancing is called using gender neutral terms, so leader/follower, 1s/2s, left/right, larks/ravens etc. Man and woman isn't used. And everyone dances with everyone else, so it's completely normal to have two women dancing together or two men, and a wide range of ages, all happily mixing.
Yet still, at the end when the "suggestions for next year" was asked, it was pointed out that "ladies and gentlemen" has been said and this wasn't inclusive enough of the non-binary folk.
I just feel so sorry for these young people. That's probably just about the most welcoming and accepting all-ages public event that they'll go to but it's still not enough.
I'm wondering why it's so compelling. Right now I'm thinking that it's because there's so much wrong in the world that feels impossible to change that it fulfils a need to affect society in some way. It's a silly thing that they can have success with.
Much like I find it impossible to campaign against porn and prostitution as it quickly gets too distressing (respect those who do) and feels intractable but I can easily argue for clarity with words to defend the most basic women's right of being able to name ourselves.