Why is it 'funny', trisher? And who has 'aspired' to be non-binary? What has been said is that non-binary is a natural state, unless one buys into the notion that women should 'present' only at one end of a scale, and men 'present as' the other. I can't think of a single person I know who does this. I'm maybe not the best one to ask, though, as I don't divide attitudes, clothing, activities or whatever into exclusively 'male' and 'female', and I don't think many people do. I think most people 'just are', and don't see NB as a recognised gender. I don't see gender as important, particularly if it is about 'feelings' and 'presentation'. These things are personal, which is what I meant (as I think you know) when I said that I am not interested in imposing pronouns (or anything else) on others.
The idea of getting my MP, who has better things to do just now, involved in a campaign to alter my passport (even if I were unhappy with having my sex recorded on there) could not be further from something I would ever do, and I don't know why you would 'take it' that anyone gender-critical would consider it.