The only sensible solution to that is segregation within male prisons, as is done for other vulnerable groups of inmates such as ex-cops, gang informants, pedop

The only sensible solution to that is segregation within male prisons, as is done for other vulnerable groups of inmates such as ex-cops, gang informants, pedophiles, child killers, and similar. Incarcerating males in the female prison estate was an absurd and demonstrably harmful policy, and it's very good news that this will now no longer be the case in the federal prison system.