@Millicispud thanks for the answer, I do appreciate you engaging with me in good faith.
I hope its OK to question you a bit further because IMO we're getting somewhere
You said Essentially, gender is what you are personally, mentally and culturally.
Sex is what you are medically and biologically
That confused me at first because if you asked me 'Who are you culturally?' my answer would include English, British, White, Europhile, and if we discussed further I'd next head to Indie music, mildly rebellious, interested in politics, interested in drug culture. Not really into films or theatre, slightly embarrassed about that, occasionally watch MiC and ditto embarrassed.
That is how I'd describe my cultural self.
Mentally I'd say I'm luckily in good mental health though I do have bursts of various less than ideal behaviours.
Personally I'd talk about how I'm loyal with a strong sense of fairness, I'm a geek, I feel alive around other people.
None of this is anything to do with my gender.
Medically and Biologically I'm female, mother of two, slightly dodgy thyroid, short sighted. The list goes on.
Having read your reply and put it in context I'm pretty sure that what you actually mean is that your gender is how you fit yourself culturally, mentally, personally with respect to men's and women's roles in the society you live in.
You don't mean do you feel more British or more European. I think you mean do you feel more at home culturally among a group of women or a group of men?
And that is very hard indeed to define.
But if I'm honest I think you were either mistaken or disingenuous when you gave a definition of gender which did not once make reference to sex or gender roles.
And I don't see how this alignment cannot make reference to gender stereotypes.
A male who feels more comfortable wearing a dress and heels and putting on a slightly high voice when they are chatting to strangers is getting some kind of fulfillment out of acting out female stereotypes.
A male person wearing baggy jeans with a hairy bumcrack showing, talking about bricks with a group of other men in a low gruff voice would never be thought to be a transwomen.
It is about how comfortable or not a person is acting / being around gender stereotypes.
And we should throw all gender stereotypes in the bin, they're garbage. I am as much a woman in my unsexy denim cut offs with hairy legs, gnarled toenails, talking about maths as I am when I wear make up, heels, and sashay along for cocktails and gossip with my bestest girlfriends.
I'm way more feminine in the second of these, I adhere to female stereotypes and enjoy them in that moment. But I enjoy the freedom to be my true authentic self in the first scenario too. They're both me.
I'm waffling! But you haven't convinced me, and I'd still love to understand what I'm missing here. I'm labour / guardian through and through. Yet tories and the times are the ones being honest about this, which makes my head hurt.