
Look into anti-trans laws in the UK, if you’re really asking. Removing legal recognition for trans ppl, making it extremely difficult to receive gender affirming care, affecting how trans ppl can exist in public life and use public services. But beyond that, as a cis woman myself, i don’t see the need for “cis women only spaces” or justification for such that isn’t just transphobia. Trans women are more likely to be victims of violence from men, so if the justification is safety then sex-based..
…exclusion makes no sense. In addition, enforcing any such rule would be completely unethical and violating for everyone involved. How does it affect you if the person in the next bathroom stall over has different genitalia? Who cares? The right to live life with dignity as who you really are, to be treated equally by the law and in public, should be what matters