Sorry but this is just vague insinuation. You haven't given any hints as to what you believe will be a surprise. Could you enlighten me please?
I mentioned those three regions because they have self-identification policies for "gender identity" that extend to prisons, and men who call themselves women are currently incarcerated in women's prisons there.
> If trans women behaved the same as men, you'd expect them to – as a population – behave the same as men. From the evidence I have access to, they don't.
Okay then, please share your evidence? Keeping in mind that any man can call himself a woman.
> One can't change how reality works by sheer force of rhetoric.
Agreed, so please refrain from implying that these men are female, as you did with your mention of "male-on-female violence". I'm sure you know they are male.
> What happens when you put people with breasts and soft features and lower-than-average physical strength in a men's prison?
You are presumably referring to men with self-induced gynecomastia. This will likely be a subset of, or at least have a significant intersection with, men who call themselves women.
The same argument I made in other comments applies to these men too - their safety is an issue for the male prison estate to deal with. Men's prisons have plenty of experience handling at-risk prisoners, for example paedophiles, ex-police officers, ex-gang members. If men with breast tissue are at elevated risk, they can be handled in the same way. There is no reason to place these men in women's prisons.