I think drug users should be called out for supporting this violent industry similar to how drunk drivers, sexual harassers, and racists are social pariahs
The problem is more that people don't know all the problems that are causing when buying cocaine. In the end, if they're doing it at home without harming anyone, what's the issue? I would relate it more to how people eating meat are contributing to global warming without realizing it.
Of course the standard exclusion will apply if you’re rich and powerful.