Oh I think you entirely miscomprehend, ST.
You see, the truth (as we keep getting told forcibly) is that if/when transwomen are allowed to use women's shelters and women's changing rooms and women's prisons....
... there'll be a veritable epidemic - nay, pandemic - of assaults and degradations carried out by transwomen (or "transwomen*") upon ciswomen in these spaces.
And - here's the kicker - there's nothing anyone will be able to do about it!!! No way to minimise ex-ante risk. No way to optimise monitoring and response. No way to maximise deterrence (through things like guaranteed identification of anyone who does offend, coupled with sufficiently strong sentencing powers). No: all women are doomed, end of.
* "transwomen" (in quotation marks), because it's a racing certainty (isn't it??!?!) that allowing transwomen into these types of women's spaces will result in a torrent of cismen choosing to masquerade as transwomen in order to offend against ciswomen in some way. I mean, that's an inevitability, isn't it? We don't even need to wait and see just how much this might actually happen in real life, do we???!?