That is quite surprising--maybe you should write an article about that?
There's no question that many countries including the U.S. need massive reform to their criminal justice systems.
But you should try to argue that rather than focusing on societal change and rehabilitation but with prisons remaining for intransigent cases, like Norway or the Netherlands or somesuch, we should actually get rid of them completely, and not just in name.
Some psychopaths do not seem to have adequate control of their behavior and/or desires, and we cannot make them so, and thus are not safe for others to be around. This includes, for example, serial rapists.
I strongly oppose letting them anywhere where they can abuse more people, for everyone's sake but women's sake especially, but maybe you can figure out how to argue otherwise. Or why the place where you keep them against their will after demonstrating conclusively that they cannot in fact control their behavior is not a "prison".