If you are open to discussion, maybe you could clarify your post.
Firstly, do you understand the safeguarding principles around segregation based on sex that are used to form toilet policy from the beginning ?
If you understand the issue in prison, if you think about why there are significant issues in prison you surely must understand that the same thing applies in all single sex spaces. If male people are attacking female people in prison when they say that they are female, what is the difference between them and any other male person when considering population risk factors? If you understand the prison issue, you understand those male people with transgender identities have not suddenly moved to having the same or lower risk of harming women as other women.
Because other women are still allowed to share cells with other women, aren’t they? Because female people have a much lower risk of committing sex crime against a female person than a male person.
Those male people are now excluded from female prisons because it was evidenced that they still committed male pattern crime even though they believe they are female people.
Do you believe that group of male people, those with transgender identities, should access any female single sex space?
The domestic violence and abuse issue is one that isn’t hard to understand. For an easy example, if a two people are now separated but still work at the same place, that male person who has a transgender identity will use the same toilets as the ex partner if the policy or law allows it. It is very easy for the male person to time toilet visits as an act of intimidation. I know of at least one workplace where this happened. The woman complained and was told there was nothing the employer could do about it. She then left her job and had to get another one. In the meantime, she has lost income and had to support her and the children.
This is just one scenario and it didn’t involve any ‘violence’ at the workplace at all. Just intimidation that was her word against his and the workplace said that they wouldn’t accommodate her needs .