I dont think it's a great signal to say "geeee we give up, we let you publicly fry your brain with drugs". Especially when people use dumb arguments like "the state could tax it and make a shiton of money with it !" which is like "hey we can make profits on potential health troubles !".
Althought I'm not against therapeutic usage.
But incarcerating people for said potential health troubles instead if doing anything to meaningfully help them does make sense to you? That's rather idd, to bring this point up, to realize the driving force behind much drug use, but then turn around and say they should be illegal and act like incarceration helps with that in any way. Do you care, or don't you?
Because yeah. In many cases, drug use is a sign of bigger problems going on in a person's life. But that's precisely why the approach to drugs should be a medical one, instead of a criminal one. To figure out "why you seeking this stuff out in the first place and putting it in your body, and what can we do to help?"
Because in that case, seeing it as a potential warning sign if other issues, and wanting to check things out and make sure that's not the case at all and if it is reaching out a hand to help and get them to try and seek out other answers to whatever those problems are, I can understand that.
But in the situation that that's not the case, and someone does indeed just want to fry their brain with drugs as you out it, why would you care to begin with and why does that warrant a criminal response of all things and using all the resources required for such an approach for that type of offense? Why do you care do much and how does it actually help anything? Because great, their brain is still fried as you put it, only now you spend the money having police look for these people and having courts prosecute them, and after that because if their sentence it becomes harder for them to get employment increasing the chance they just have to live off government benefits or something due to lack of other options and....
How is anything inproved at any point in the process? Because it sure doesn't seem like anyone wins. Those who do drugs stand a good chance if getting their lives messed up, and those that don't pay more in taxes specifically to mess up the lives of those who do drugs vs say either taxing drug use and making money if that and if in doesn't like that and us determined to spend in then alternatively decriminalizing it but using a medical approach focused in getting to the root issue and making heavy users productive members of society seems a way better use of the money. But the incarceration model, I don't see how anyone wins from that unless the point is just pure raw spite or something because both drug users and taxpayers get a raw deal for no discernable gain, and I don't get why you would nonetheless pick that of all models because nothing is really in it for either side otherwise.