@sillyCoelophysis
There was actually a federal investigation into the state of sexual assault in federal prisons back under the Obama administration and it found almost as many sexual assaults in prison as there are outside prison, both in men's and women's prisons. This led to laws and executive orders that were supposed to change things....and instead it's only gotten worse while some contractors got paid to do jack squat.
If you or anyone else hasn't seen it, I definitely suggest watching Pop Culture Detective's video essay "Sexual Assault of Men Played for Laughs" on this very topic. Turning sexual assault in prison into a punchline just further extends rape culture and undermines the ability of survivors to get support and care. https://youtu.be/uc6QxD2_yQw?si=6Z7Vk1r7QSXchf7J