Might as well ask the queer community because they've thought about this more than I ever will.
I think the gender binary (and coping mechanisms like a gender spectrum) is nonsense, and the concept of gender whatsoever is increasingly obsolete in society. I have no problem with all the coping mechanisms people have for reconciling themselves with our society's dumbassery, I'm not a prefigurative idealist, but if asked to make a choice, I consider myself non-binary. This is purely a political stance, outwardly I fit neatly into the 'cis man' label and that has about 0 affect on my mindset and life. I face no societal oppression for my sex, sexuality or gender so I'm effectively only involved in the queer movement in solidarity, rather than being a part of a queer community.
What is a succinct way to sketch this position to people? Postgenderism? Gender abolitionism? I definitely want to avoid using the wrong words and having people mistaking my position for "gender critical" bigotry.