You are probably, absolutely right, Bertrand.
But I am not sure that we can do any of that without having an agreed upon definition of what is a woman.
Imagine the scene: Meeting place, 50:50 TRA and GCFems. Nobody leaves until an answer is found, a mutually agreeable law is drafted.
Hey! Why don't we just say that only women can use female safe spaces. You know, people born with a female body?
And then why don't only record crimes that are committed by those same pople as female crimes
Of course we'll only let those same female bodied people compete in female sports
And it is ludicrous to shame a lesbian to have a sexual relationship with any male bodies person.
All agree and leave happy, only 10 minutes have elapsed
GC Feminists know that now all human females, large gametes, XX chromosomes, etc etc are protected
TRAs leave knowing that everyone who identifies as a woman can be a woman as they choose
The problem is that both sides are entrenched, won't or can't give an inch. Women because, well we have seen the upshot of TWAW being enacted. And TRAs because they have gained so much ground they can almost see their end goal in sight - as confirmed by Stonewall that is all sex based provision being removed, sex as a protected characteristic being removed.
So there cannot be a meeting of minds, a mutually agreed resolution that will end up as a law.
As you say, there have always been trans people. Taking transwomen, as I am not a man and don't know how they feel about transmen (still hoping a male poster will discuss this with us).
I, like many, have historically taken a breath and looked away when a transwoman has entered a female space. That was the polite, informal, unspoken way to deal with it. THAT could still be the reality... the problem is someone messed with that and many posts here discuss the birth of this. That has to be undone, rethought, scoured away and started again... this time with plenty of sunlight.
But of course that won't happen. So we seem to be stuck in a deadlock. And I doubt women will give ground... or that husband, fathers will once they realise what the realities are.
NOT that all transwomen are dangerous, violent etc etc. But they are men... and we had sex segregation for a reason... not that all men are dangerous, violent etc etc.