A society determines which harmful substances (and its effects on the individual and the society) it tolerates and how. Alcohol is in Germany tolerated (more than in the US) and it is also a huge legal business.

I'm for tolerating both alcohol and cannabis, but without mass marketing (ads, ...).

One struggle we face is the large inflow of other drugs, the resulting damage (for example from crack) currently from south America, the import of crime from there and the use of the drug business of legal cannabis business to expand their other drug business.