I never could wrap my head around long prison sentences. Even assuming a truly humane prison (not a reality in many places), which rehabilitates inmates well, it's hard to map a year, five years of prison on a crime that happened in one moment in time.

The way decisions, actions, arguments and repentance work in real life, as regularly seen with children, is usually on a short time frame. If you really need to punish someone - questionable in itself - maybe bring back the whip, but let people walk with a clean record the next day. If people can't be put back into society, they could be subsistence farmers with a netflix account in a fenced in plot of land or something. A significant change in scenery, and some forced lifestyle changes could be OK as part of a judgement

But putting humans behind bars? Nah...