there are so many different ways of being a woman
No, there is only one way of being a woman. That is being an adult human female. There are many different ways that women live their life, there are many different personalities that women have. But the only thing that makes them a woman is their sex.
I don’t think I can outline the criteria for being a woman You can't define it as there is no way to define being a woman that includes males. If your beliefs held up, you could define woman and the rest of your beliefs would flow from. But you can't. And that shows your beliefs don't stack up.
Your post is just verbage to defend why you can't defend your beliefs.
For a small minority of people gender identity is not predicted by physical sex. We don’t yet know why, although there is lots of interesting research looking into this
Again, your starting position is that gender identity exists. But that is not the starting position. Gender identity is a hypothesis that has been created to explain why some people have sex dysphoria. You would have to create research to test this hypothesis. You might wish to say, well if gender identity is what makes someone behave as a man or woman, lets look at areas we have very high evidence for difference in male and female behaviour, such as violent crime stats and sexual offending stats, and see if the population of people who claim a female gender identity at odds with their male sex, show female patterns of behaviour in these areas.
We don't have much data on this, but the data from male prisoners claiming a female GI, is that they are sex offenders at a higher rate than the male population.
But again, you cannot invent a hypothesis of gender identity and then just claim it is true and expect society to organise around this claim. You have to evidence that gender identity is real and define it.