There are photos and video footage of TIM athletes trouncing women online for all the world to see. There are also many prominent people & organizations (such as the ACLU, the IOC, the MSM) who take the position that TIMs being able to compete in female sports is "the civil rights issue of our time." Odious, misogynistic TRA athletes like Cece Telfer and Ragehell McKinnon/Veronica Ivy give interviews with the press and make posts on social media that reveal how entitled & male supremacist they are...

Whereas what's happening in prisons is all happening out of sight - with no footage, photos or social media posts. And in today's world, if there's not a clip of an event, then the event didn't happen.

Plus, women in prison aren't just "some of the most vulnerable in our society" as you say, they are also a group hardly any other group seems to care about. Those who argue for abolition of police & prisons and point out the ill of "the incarceral state" are entirely focused on males.

Look what's happened with the Prison Rape Elimination Act in the USA. In implementing the PREA, all the focus has been on males being raped mostly by other male inmates in male prisons, & to some extent by guards/staff as well. By contrast, very little attention has been paid to female prisoners being raped or sexually assaulted in female prisons either by staff or by other female prisoners.

In fact the PREA is now used as a/the major justification for why TIMs should be transferred to female prisons. The "rationale" is that male rapes of other males is the most important thing to be reduced - as long as that objective is achieved, or aimed at, who cares if by moving male convicts into female prisons, female prisoners end up getting raped by male prisoners? So long as the male prisoners are better off is all that matters.