My goal is not to strip anyone of their rights. My goal is to make everybody's rights clear. If we can get clarity on this hopefully it will stop the… - Sall Grover

It's always been you can't discriminate against anyone except when you can … (because it is) for a positive reason for that group.
Female only spaces have existed for such a long time and there has been no controversy in it.

[Statement in court ] I wanted to create a safe, women-only space in the palm of your hand. [...] It is a legal fiction that Tickle is a woman. His birth certificate has been altered from male to female, but he is a biological man, and always will be.
We are taking a stand for the safety of all women’s only spaces, but also for basic reality and truth, which the law should reflect.

If Tickle wins, it will establish that males have a legal right, not just to the female sex category, but to all female spaces, including hospital wards, sports facilities, domestic violence refuges, rape crisis centres, and prisons.