@Blibbyblobby
"The Genderist view is, I think, that we should keep (B) and (C) but get rid of (A)."
Not really.
A woman, cis or trans, can live and present however she wants. There is no requirement to be feminine, nor does anyone presenting feminine need to be a woman.
A man, cis or trans, can live and present however she wants. There is no requirement to be masculine, nor does anyone presenting masculine need to be a man.
A non-binary person, can live and present however they want. There is no requirement to be androgynous, nor does anyone presenting androgynous need to be non-binary.
But they can be.
That is what the "genderist" view is. We keep trying to tell you. There doesn't need to be a "link" between presentation and identity.
There is no such obligation.
You may think that's "similar" to what you believe, but it is not. Because unlike me and other trans people and allies, you believe in restricting and policing other people's identities. We do not.