@Helen8220 You say that sex segregated spaces should not be the starting point but that is where we are.
In some cases, sex segregation has been reassessed and deemed not to be helpful, eg most schools used to be segregated by sex but this is no longer the case. We should review on a case by case basis, the historical reasons for the segregation, assess the continued validity of that segregation and perform a risk assessment on removing it.
Have women benefited overall from the removal of sex segregated schooling? Yes, I believe they have.. there is a good discussion on a case relating to a faith based school..
"Only the dissenting judge, however, concluded that gender segregation in mixed schools is disproportionately discriminatory against girls in that it creates more harmful practical and symbolic consequences for girls in a society in which women have been and remain the group with minority power. Lady Justice Gloster agreed with Ofsted that an educational system which preserves segregation between the sexes within co-educational schools, so that both groups – from an impressionable age – find it more natural to form exclusive and different social and professional networks with those of their own sex, has the result that women lose out in later life more than men, because women are still disproportionately excluded from networks of power and influence. In other words, sex segregation endorses gender stereotypes about the inferiority of women or their perceived place in a society where predominantly men exercise power."
As an aside, it is interesting that this case was brought and eventually found against the school despite the 128,000 children that are privately educated in single sex establishments.. I suspect some racist bias here..
But.. where toilets, prisons, hospitals and sports are concerned, there is plenty of world wide evidence that this is important for women to be safe.
In addition for sports, there is plenty of evidence that women will no longer be setting records, will find themselves behind male bodied people in races, facing male bodied opponents and the very nature if female only sports will change fundamentally. Women fight for a smaller share of funds, facilities, marketing. They will now have to share those already limited resources with men when there are many many more opportunities for men already. My favourite statistic is that the top 1,000 women playing in the top leagues in the USA, UK, France, Sweden, Germany and Brazil are paid in total, the amount received in salary by one single male player. These are the best in the world for their sex. Should they now share that paltry stage with male bodies who by nature if having gone through male puberty, have greater lung capacity, muscle mass, bone density, strength, speed.. Should the fastest women on earth be out run by mediocre teenage males? Do we go back to ... what's the point of women in sport? Can you not see why this is a problem?