@Rheopecticfluid
You're right Barley. It's not possible in a hospital. So people need to be accomodated on the ward of their birth sex. After all you don't think there's no risk of harm with born males sharing with females. In which case, by your own logic, there's no risk of harm to males identifying as women sharing with other males.
I've already said I don't believe trans women represent the same threat as men but I don't want to derail this thread with a long discussion about that.
So let's say, for the sake of argument they do. From a purely dispassionate risk assessment point of view how should hospitals manage this if the aim is to minimise sexual assaults - with the presumption that a trans women being assaulted and women born biologically female being assaulted carries the same weight ie they are both to be avoided, and one is not seen as more important than the other.
Say a biologically born female has ten stays in hospital. In that time she might share a ward with a single trans women once, given how few trans women there actually are. Whereas a trans women would have to share with a ward full of men every single time. We know from overwhelming evidence that trans women are just as likely to face sexual assault from men as other women - so from a risk assessment point of view what do you do - minimise the absolutely tiny risk of a woman being assaulted by a trans women or minimise the much greater risk of a trans woman being assaulted by a man in a men's ward. In fact a trans women on a men's ward would likely require greater supervision of the ward, more resources and in fact increase the liklihood of a woman being assaulted by one of the many medical and maintenance staff, or male visitors that the women's wards are already full of.
From a risk assessment point of view if you really cared about women being assaulted then you would surely be looking at preventing women from having male visitors, or increasing security so men can't just wander onto women's wards which they frequently can in most hospitals. But that would cost money and a lot of women wouldn't like it. But that, as well as increasing staffing are the kind of things you'd need to do to lower the prevalence of sexual assaults in hospitals.
Placing trans women on men's wards would not make hospitals safer for women and would make them much more dangerous for trans women, and that's without issues around dignity and whether trans women would just disengage from healthcare possibly leading to deaths.
And that's really the crux of this debate. Should trans women be placed at huge risk, have their dignity compromised, and possibly feel that healthcare is not available to them to prevent someone's discomfort at sharing a ward with a trans women or an infinitesimally tiny increased risk - a hypothetical risk in fact because the only published evidence to date says trans inclusion does not place women at increased risk.