Slim, Slim, Slim, lol …
Just read your link.
It's pretty much standard leftist fare - 'prisons are bad, prisons only punish ethnic minorities and pot-smokers, the rich get away with it', blah blah blah.
The author of the article doesn't address this simple question: if we abolish prisons and someone commits a serious crime - rape, murder, terrorism, etc. - how should society punish that person?
No mention of an alternative punishment.
You could free all BAME prisoners, free all pot-smokers in jail, free all mentally-ill prisoners … and some people will still be bad enough to commit murder/rape/etc.
When someone commits a serious crime like murder, that person must be punished. The death penalty was abolished in Britain with the insistence that life would mean life. If you abolish prisons, how will serious criminals be punished?