There seems to be a lot of research going on now using things like MDMA, Ibogaine, ketamine, and even psilocybin to break addiction. All this research is decades behind due to over reaching government and BS "war on drugs" policies that have prevented these studies in the past. I'm only mentioning this as an example of one of the many failure points of the War of Drugs, not to suggest that toy store shelves should place Barbies between open bottles of bleach and PEZ dispensers filled with fentanyl.
Which I think is great news for those who want to get clean.
Decriminalizing hard drugs is creating fewer incentives to get clean. The hand wringers/statists seem to be completely pre-occupied with finding ways to spread the consequences around than finding solutions.