Yes, that is basically how people who believe in gender ideology see identity. You feel, and so you are
But we are talking about feminism, and you don't need to have any feelings about your gender identity to need sex specific rights.
We have agreed that the law recognises discrimination by perception and that if others believe a man to be a woman he can experience discrimination on that basis, (although he still won't have to deal with the consequences of being female), but a man who is understood by others to be male will be treated as a man, regardless of his personal beliefs about himself and regardless of whether others are politely pretending that they think he isn't a man.
Even this expectation of affirmation is sex specific. No woman would be able to pull off a Pip Bunce and be taken seriously as a man on some days because she is wearing trousers.
So instead of trying to learn some new about humans and our differences, as in, how humans come to different conclusions and interpretations about life generally, you don't even bother trying to learn and you dismiss actual academics who are trying to teach you.
I don't think anyone on this board is unaware of the fact that people have different beliefs. What you haven't done is explained what is shared by the group of people who believe they have a feminine gender identity and why they would need to be protected in law as a group.
As an aside, I think that over the past 10 years 'trans' has become such a loose definition that it could include pretty much everyone, and that also makes it very difficult to explain the need for trans rights.
You can't fight for the rights of a group that can't be objectively defined, and this suggests a lack of seriousness.
I just spoke about what some people believe. As soon as you get a sniff of "blood,", it is like intelligence leaves the body and you all start gnashing. Intelligent discussion becomes impossible.
It's not clear what you think this adds to the discussion. Some people think the earth is flat. Unless you can explain why, that isn't very enlightening.