This discourse is so tiresome. There are low crime jurisdictions on this planet that do not have drug epidemics. We know what policies work. They're not pretty, but they're effective. Harden your heart and implement them, or live with the consequences.
Effective at what? The whole reason Portland tried something different is that the last 50 years have proven drugs laws to be largely ineffective at preventing drug abuse and its related issues. Clearly this style of decriminalizing has also proven ineffective, but it’s not like we had a working system before.