If it makes things clearer, think of them less as rights, and more as rights to protections and mitigations.
If the world was fair, we wouldn't need them.
But the world isn't fair. We are still sexualised by society, and that changes how some men treat us, from just seeing us in terms of our sexual desireablity right up to sexual assault. And we still carry the social repurcussions of millenia where we wer assumed to be less than men, there to support them not surpass them. Even though no one admits to thinking that these days apart from Andrew Tate-addled basment dwellers, nevertheless that imagery is so embedded in our culture, from church paintings to story tales to hollywood films to how the newsreaders interact, that subconsciously it affects the expectations and values others place on us and even we place on ourselves.
And all this before we even start to talk about the assymetry of pregnancy and early years care, and how society is structured in a way that the cost of that in time, social capital and earning power falls so much more onto us.
So. There's all that on our backs simply because of our sex.
And women's "rights" - they aren't privileges. They are a few buidling blocks that women have been able to persuade society that it is fair to give us, to help us sometimes put down the burden of always fitting into or around the social constructions of womanhood and the expectations of men, and escape the gaze and the entitlement and the expectation of our attention, and just be us. And sometimes share converstions and observations that we don't feel safe or able to do in front of men, or try things without being overshdowed or overinstructed by men.
So the reason why women have these rights is not "because that is they way it is". That is TRA thining - that women's rights just happen to be there for no reason, and anyone who can grab the name "woman" has a right to them.
No, women's rights are there because once we didn't have them. Every single one, the right to maternity pay, women only toilets, to women only prisons, women's sports, every single women's refuge, right down to the small things like a women's pottery group or a women's coding club, exists because at one point a woman looked around and said "this is holding women back, or making women unsafe, or stopping women particpating properly in society, or getting into a lucrative sector, and I think that matters and I'm going to campaign for it or argue for it or just roll my sleeves up and build it".
And the reason we are "inflexible" about this, the reason we don't think it's fair, or inclusive, or progressive to share these things with men who claim to believe they somehow like us on the inside, is that the reasons we as women needed these things have not gone away yet. Some of those reasons, some of those risks and prejudices and entitlements, are even still in the thoughts and behaviours of the men who think or claim to think they are women.
When men gave up their "rights" (at least on paper) they did so because they realised they didn't need them any more. They didn't need to own us or exclude us or control us, they could just be equal with us, and there was no moral justification to continue to elevate themselves over us.
That is not where we are. Our "rights" are still needed. Until the reasons we have them have truly gone away in society, we need the rights we have to protect us and to mitigate the sexism that we still face.