I am not worried about the loos and changing rooms - in theory (which is all we can say about it) men self-identifying as women and assaulting/spying on the occupants will probably be no more numerous than lesbian women doing the same, or than cheeky adolescent lads up for a dare and putting on makeup and wigs to infiltrate female domains.
But I would like to ask these blokes who self-identify as women (but who have retained their functioning male equipment) whether they are also taking any other steps to join their chosen gender? Taking female hormones, perhaps, and suppressing their production of testosterone?
Yes, I know that everyone has some hormones of each kind, but the first move for anyone wishing to move completely to the opposite gender is surely to change their hormone balance? That would involve medical assistance, and the most effective way of doing it would be to surgically prevent their body being supplied with testosterone - ie. by removing testes. Whether they did it via medication or by surgery, they would interface with a GP or consultant, and would have the necessary medical backing so not need to self-identify.
If they are not taking active steps to bring about a physical change, then how serious are they? Being a woman is not just in the mind, it is a physical reality with various manifestations, most of them driven by hormones (or for the pre-pubescent the expectation of those hormones, and for the post-menopausal, their cumulative effect.) Otherwise, they are just play-acting, pretending.
Perhaps those self-identifying are trying out the role before embarking on the reality? Maybe they will take it further, or maybe they will revert back? According to a consultation survey on a Review of the Gender Recognition Act 2004 by the Scottish Government, there would be a cooling-off period during which the applicant could cancel the application, and there would also be the opportunity to reverse the decision ONCE and once only after that cooling-off period was over. No chopping and changing!
This is a link to that consultation. consult.gov.scot/family-law/review-of-the-gender-recognition-act-2004/ It has a lot of detail about the proposals, and about the different ways other countries have handled the issue. Worth reading (but too late to respond!)