Compulsory treatment has been studied in a number of settings and is very ineffective because treatment for a substance use disorder is not a one-off process. It is an ongoing and often relapsing condition that needs a more nuanced approach than a compulsory setting, which is typically one-size-fits-all.
In terms of social policies, I would argue that we need to look at the housing crisis. We need to look at income stagnation and income mobility, intergenerational income mobility, unemployment, all of these things that contribute to a strong social safety net, which Quebec had famously in a way that other provinces were often quite jealous of, but which has been somewhat—