The thing is, to bring this back for a moment to your original question, I am not personally all that bothered. I don’t have any trauma in relation to men, for example, and I don’t feel self-conscious about putting a bit of lipstick on in front of any number of decent, average men. I also don’t really ever feel weird changing a tampon or whatever. I have comfortably used unisex toilets at work.
BUT, that is entirely beside the point:
Many, many women have been raped, assaulted, exposed to indecent actions, have been sexually abused as children, violently abused as women, have vulnerabilities (emotionally, psychologically, mentally, physically) and disabilities that make their lived experiences vastly different to mine, but also shared in enough depth, simply by virtue of being female, for me to know, at least on some level, that my responsibility lies with them. I don’t owe men anything on this issue.
I don’t need to share every woman’s exact views, experiences, needs and wants in order to know without any doubt whatsoever, that every woman, whether they think they need it or not, should have access to female-only spaces. Men do not belong in these places - they are segregated by sex for very, very important and serious reasons.
However, that is still taking the justification too far - there is no obligation to justify it. Whatever proportion of women are ‘fine’ with it, the proportion that is not deserves consideration, protection and solidarity.
If you haven’t yet read the current M&S threads on the feminist boards, I strongly urge you to do so.