It is better to prevent a violent crime in the first place than it is to punish it after it has occurred - I actually agree with you this. But, again, some people will always commit serious crime. That's reality, I'm afraid.
The countries with fewest people in prison are the countries with the lowest rates of violent crime - this may be true. But violent crime still needs to be punished because it can't be prevent entirely.
Prisons don’t prevent violent crime they make the problem worse - I agree they don't prevent crime … not sure they make the problem worse. Maybe when offenders get out of prison they are likely to reoffend. Perhaps this is a problem with the way prisons are run, rather than prisons failing as a concept. And, of course, if the really serious criminals were locked up for life they wouldn't reoffend at all.
btw I think that’s me out of posts for today (I only get 5) listen to the podcast on abolition - sorry, Slim, today I don't feel up to wading though anything put out by Novara Media, lol.