Maybe I just don't think "I look the other way if you get raped, even though it's not actually a legal part of your punishment" is generally a good way to go about criminals, male or female.

Do you think criminal men deserve to be raped in prison?

I suspect many feminists would say yes to this question.

Were you aware that the term "rape culture" was originally used to describe how the tolerance of rape of men in prisons? This was in the 1970s. The term has since been co-opted by feminist to use against all men by describing men as all tolerating rape in some way. Feminists do not care one single bit about the rape of men in prison (or outside of prison), they only care about rape of women in prison, and even then they only care about the rape of women in prison by men, as this issue only exploded once trans-women were involved, even though most female rape victims in prison are victims of other females.

The point I'm making is this - if feminists want help from men in reducing rape in female prisons, they need to come to the table and acknowledge that rape of men, in prison and otherwise, and the perpetration of rape by women, are issues that also need addressing.