I'm not sure your statements about prison time are accurate, at least in the US.
According to the Federal Bureau of Prisons, 46.2% of inmates are in for drug offenses[1] and there is definitely disagreement about whether that should be a crime, let alone an extreme crime. Additionally, 78.6% of inmates are serving sentences longer than 5 years[2], which by necessity means that a large portion of those are for drug offenses.
Source is [1], 45k / 1290k for drug possession (and nothing harder), plus 145k for other drug charges (which I guess is closer to 11% not 10% as I said).
Minnesota's 17% isn't that far off the national number it seems. They don't give a breakdown for simple possession. Violent crimes at 55% are again a majority.
If I had, let's say, less than $1000 worth of drugs - enough for a few weeks of personal consumption, but on occasion I sell a bit to one of my buddies. Does that make me a "distributor"? It did according to the law.
You're unlikely to find any realistic statistics on usage vs "distribution" due to that.
According to the Federal Bureau of Prisons, 46.2% of inmates are in for drug offenses[1] and there is definitely disagreement about whether that should be a crime, let alone an extreme crime. Additionally, 78.6% of inmates are serving sentences longer than 5 years[2], which by necessity means that a large portion of those are for drug offenses.
[1] https://www.bop.gov/about/statistics/statistics_inmate_offen... [2] https://www.bop.gov/about/statistics/statistics_inmate_sente...