@ButterflyHatched I'd really like to understand whether you actually appreciate what the problem is, from our point of view.
Right now, different people are using the word "women" to mean two different groups of people.
Group 1: All adult humans of the female (i.e. childbearing) biological sex, regardless of whether or not they have any particular gender identity. This group does not include any male people, regardless of whether those male people identify as something other than male or not.
Group 2: Most adult humans of the female (i.e. childbearing) biological sex including all those who believe they have a female gender identity and all those who do not have a gender identity or who have never heard the term "gender identity", but excluding some adult humans of the female biological sex who believe they identify as something other than female, and including some adult humans of the male biological sex who believe they identify as female.
I, and most other people, use the word "women" to describe Group 1.
You, and some other people, use the word "women" to describe Group 2.
This means that when someone uses the word "women", we no longer know whether they are referring to Group 1 or Group 2. This is hugely problematic when it comes to things like single sex spaces or sports.
We need a word to describe Group 1 because there are a lot of situations where biological sex is directly relevant and where we need to be able to identify and discuss people by reference to their biological sex.
I cannot think of a single situation in which I would need a word for Group 2 because as far as I am concerned this is a group of people with nothing in common. They have no common healthcare concerns, they do not need their own spaces which exclude people not in this group, they do not need their own sporting categories.
You might wish to have a word for Group 2, but many of the people in Group 2 do not want to be included within it. As far as I can see, the only purpose of Group 2 is to force team women with people who are not women by claiming the existence of a group they are both in. I do not want to be included in Group 2.
Now I realise that there are some people in Group 1 who do not want to be included in Group 1. But they are in Group 1 whether they want to be or not, because Group 1 objectively exists and the boundaries of it can be defined according to objective criteria, which trans men and female non binary people fulfil and trans women do not.
I do not think it is legitimate for trans people to effectively demand that the rest of us have no word for Group 1 purely because some people who are in it do not wish to be in it and some people who are not in it wish they were.
So what is the word for Group 1, please?
The word for Group 1 was "women" from before the Norman Conquest until very recently, when a small group of people invented Group 2 and decided to call it "women", leaving us without a word for Group 1.