I don't agree (of course), but admittedly it is difficult-to-impossible to measure the harms on either side at that level of aggregation. i.e. across all societ

I don't agree (of course), but admittedly it is difficult-to-impossible to measure the harms on either side at that level of aggregation. i.e. across all society. But from the perspective of the individual user, for the vast majority of people, being thrown in jail would be so much more harmful than any negative effects they or those around them would ever experience from cannabis usage.