Earlier quoted context omitted.
Well, so some of them moved on to other activities that also shouldn't be criminalized, then. I speak about gambling. Which is de-facto legal now, because of how many Indian casinos there are in so many states. Prostitution? We have a long way to go in decriminalizing this. But slight progress is being made. Just another stupid moralizing law that achieves nothing. Now as to protection rackets, extortion, etc. These…
It's tautological to say that decriminalizing things reduces crime. It would be more productive to do a cost benefit analysis. Most of the advocacy I've seen is starry-eyed and simply ignores or rejects the idea that the social costs--for example marginally or completely unemployable addicts. There's a fair point that this is true of legal drugs (alcohol) but it's not something we should want to expand (c.f. drunk dr…
On the other hand, what if that wasn't really the case, what if it was how desensitized to hatred and violence most prisoners become after a stay in prison. And it was this desensitization combined with the relationships formed in prison, which inherently only could be with other "criminals," that led to an increased propensity to commit a crime?
If that were the case, then decriminalizing things reduces crime, not only by it's tautological implication, but because it reduces the desensitizing effects prison has, leading to the in-and-out cycle experienced by many in the prison system.
I recognize that the world is not 100% like the case I presented, but I would argue the truth lies somewhere in between (like it does in most issues) and that decriminalization or alternative punishments (especially with teens) have potential to significantly reduce crime, by all rights, both in number and it's relative proportion to the hypothetical rate pre-decriminalization.