If there are no users there are no dealers.
Sure, but you can’t realistically expect to kill all drug users, and honestly you shouldn’t want to live under a legal system where that’s the end goal of the law. I would personally hope anyone involved in enforcing such Draconian measures be killed themselves.
Stigmatising drug users will also lead to a host of other problems, such as higher rates of overdosing if they’re too afraid to contact medical authorities.
Blaming drug dealers for drugs use makes no sense.
Sure, and I’m not really interested in finding new ways to punish drug dealers. I think the real question here is why we live in a society so miserable that so much of the population would want to spend so much of their lives drunk or high. Of course that’s not a problem anyone working in law or the government can try and resolve.
I don’t see why you’d think any particular group would be targeted. I don’t see that regarding other crimes. I mean it isn’t like wealthy White kids get to drive drunk while everyone else is arrested.
They don’t get to do it, but they are likely to be treated much more harshly if they’re caught doing it. Honestly drug use is the case where this kind of racial profiling can be seen particularly clearly. A poor black man caught with marijuana is much more likely to be prosecuted harshly than a rich, white man in the same position. Poor, black communities are generally much more harshly victimized by drug policies than wealthier white communities, despite the popularity of drugs such as marijuana, cocaine, ketamine and MDMA among young, wealthier white people. Poor black communities are policed much more diligently to prevent this kind of crime, but to much less of a degree is anyone cracking down on white kids in clubs, bars, flats and university halls. Even looking internationally, many European countries deliberately adopt lax policies on drugs because they know that wealthy tourists are attracted by their drug culture.
While I think this discrimination is partly a deliberate outcome of the war on drugs (a Nixon aide has admitted that drug laws were intended to target black people and political dissidents, for example), before I’m accused of being an SJW I should note that this kind of profiling is a part of the way all demographics are prosecuted for crimes. A woman who sleeps with an underage boy is much more likely to be given a lenient sentence than a man who does the same, for example.