You're conflating the legal system with the penal system. It's a common mistake, but the "3-strikes laws" are part of the laws and how they're enforced, which is the legal system. The penal system is about carrying out sentences and imprisonment. In some case the penal system is actually an advocate for the prisoners against the legal system. For example, prisons force law enforcement to get warrants before they'll let them listen to prisoner phone calls if they haven't been convicted yet, or sometimes just in general.
That's not to say what you mention about the legal system isn't screwed up, it's just to fix the penal system you have to focus on things the penal system can change. They can't change the 3-strikes laws, but they can change early release programs, surveillance, oversight, IT budgets, conditions, training programs, guard training, etc.
That's not to say what you mention about the legal system isn't screwed up, it's just to fix the penal system you have to focus on things the penal system can change. They can't change the 3-strikes laws, but they can change early release programs, surveillance, oversight, IT budgets, conditions, training programs, guard training, etc.