[majos]

I would argue that you can 1. assume all prisoners are guilty and 2. not care about their welfare (both assumptions that I disagree with) and still support prison reform on the grounds that it reduces criminality in society overall.

Look at the current state of American prisons. We crowd prisoners together and make them feel angry, scared, weak, and ignored by the law (except when it hammers them down) for years on end. That makes it much harder for them to integrate back into normal, law-abiding society.

We should be trying to make it as easy as possible for a convict to eventually leave criminal life behind. But our current system does the opposite.