Something I didn't spell out, which may explain some of your confusion, there is such a thing as "drug related theft crimes", these are crimes committed by drug addicts to feed their habit.
They have a distinct pattern, and most of the crimes mentioned in this thread fit that pattern. So, if you try to be "tough on crime" by locking up people with addictions rather than helping them break their addiction and/or even just in some scenarios giving them drugs for free, then you are wasting both lives and money.
https://bjs.ojp.gov/content/pub/pdf/DRRC.PDF
> Another dimension of drug-related crime is whether the
offense is committed to obtain money (or goods to sell to
get money) to support drug use. According to BJS
national surveys, the most comprehensive information
available, an estimated 17% of 1991 State prison inmates
and 13% of convicted jail inmates in 1989 reported
committing their offenses to get money to buy drugs
(table␣3). Offenders convicted of robbery, burglary, and
larceny/theft were most likely to commit their offense to
obtain money to buy drugs. Offenders convicted of sexual
assault and homicide were among the offenders least
likely to commit the offense to sustain their drug habit.
I'm suggesting that we should listen to experts, and get the former group medical help, which frees up police time and resources to go after the second group of murderers and rapists, which helps the idea appeal to the tough on crime types even if it has the drawbacks of being more humane, more effective and cheaper as well as actually reducing crime.
But the War on Drugs was never really about the drugs in the first place, so it's not like this was some innocent mistake, it's a problem that got created and is now exploited to push more of the same bad policies.