@Albuquerque,
It's getting really hard for us old folks to remember all this stuff, especially when it keeps changing. It is "first nations" or "aboriginals" or "natives"... just to pinpoint one group. Then add 'binary', 'non-binary', cis', 'trans'... I keep having to look all this up. Can't we just say person or people, for Pete's sake?
If someone said to me, "I'm non-binary", I'd say, "Who cares?"
Get off my back.
Edit: And I just know this is going to cause controversy. But... who cares?
That's their issue(s), not mine.
Keeping up with this is a goddamn full-time job.