Ah, I can explain that one. It's the direct consequence of your own "side"'s actions, actions which I wouldn't describe as "sadism" (being, you know, a rational adult), but that I do think it's fair to call exceptionally cruel. These forced women into the very corner you're now condemning. Honestly, when this is all over, I'll never be short of examples to explain irony.
Think about this logically.
If we call "trans women" what they are - "trans women" - then they retain the ability to name and advocate for themselves, and women retain the ability to name and advocate for themselves...
This is how things used to be, and it worked OK. We all muddled along quite nicely for a while.
...But if "trans women" take the word "women", then the people who used to use this word, for millennia, across the world, can no longer name and advocate for themselves as a distinct group.
If you're not sure who I mean by this group then, I think, you've make my point very well indeed.
If you do know (and let's face it, we both know you do), then you'll also know that I mean the people who only just got the vote (not even a century yet) and who were only just recognised as autonomous beings in their own right, as opposed to extensions of their partner's mind and bodies, in recent decades really (the right to open a bank account? the right to resist marital rape?)
And yet it didn't stop there. Trans women labelled "adult human female" transphobic, and even began to claim "female" (Dr Upton, in court, FFS!)
So, what could women do? They were losing any language necessary to even come close to even expressing their concerns, let alone to argue their case. And this in a context in which, to pick just two devastating examples of thousands, they continued to be 70% or so more likely to be severely injured in a car accident in western countries, and are effectively gagged in public spaces in Afghanistan.
It was clear. Those of us arguing for our sex-based rights increasingly felt that they had no choice left but to be absurdly, exhaustingly, infuriatingly explicit. And not to give an inch on this - not. a. single. inch.
Btw, a significant proportions of posters here started out calling you "women", or at least "trans women". I know I did. You know what changed our minds? Puerile posts like yours above revealing the total paucity of the arguments for giving up our word, and the consequences of so doing.
So keep posting, by all means. I wouldn't advise it, personally, but I'd never deny a group the right to speak for and about themselves.
Because, to me, to do so is the ultimate act of oppression.