Who would go to the trouble of transitioning, against the vicious judgement of some people, if not to try to live a more authentic life? I am (visibly) non-binary, and I can tell you, I don’t do this just for the hell of it.
What does this mean?
At my workplace, one of my male colleagues calls himself "non-binary" and has "(they/them)" in his email signature. He looks like any other man to me.
As far as I can tell, it's more like a religious belief than any kind of distinct visual style.
And “visibly” as in I get funny looks and sometimes shouted abuse from passing cars. Is that enough for you?
My male colleague who self-describes with a "non-binary" identity has no obvious visual markers of this.