The justice system is not “doing what it’s supposed to” when it makes people credibly fear they’ll be raped in prison. The justice system is doing what it’s supposed to when it fosters a safe, predictable environment for people to be rehabilitated. The tweet tries to soften it with “I’m not saying I think it should happen, but…”, but outright, no: wanting to instill fear that what someone did to their victims will happen to them is perpetuating a culture that relishes in revenge and only pretends to care about protecting future victims.