Legalizing every drug, whether good or evil is clearly an anarchist thing, and shouldn't be encouraged or imposed on societies where law and order are valued. It's like encouraging people to do whatever they like whether good or bad. But if you insist, what you ask for (which feels like anarchy) will be given you and those who share thesame mindsets, but those who disagree will be protected from the outcome.
However , it's moral to permit the consumption of natural alternatives (whether plants, animals etc ) from which the drugs are derived or synthesized from. By the way, the natural alternatives were created for different purposes (known and unknown) hence have right to exist for their purposes. The artificial ones are reproduced from them and we can't be certain about their safety despite claims they are safe.
Humans ought to be careful with things that are strange to nature, which are considered artificial. They could have unknown bad consequences the natural world is not equipped to handle. Let's consider a very common example of the kind of damage artificial things can do to nature if not controlled or prohibited, if you go to certain third world countries where anarchist-kind of mindsets reign supreme, you would see what they have done to their environments with artificial materials, like plastic bottles,. It's shocking sometimes. It's for this reason they shouldn't be allowed to use such artificial things atall or without guidance. I personally wouldn't even permit their use because they are hard to decay, and in most cases harmful to nature. Couple with the fact that most humans are unfortunately dumb, or are not "intelligent" enough to know how to properly dispose of the artificial materials, assuming that is even possible in today's world. I think the fair option would be recycling if they can't be gotten rid of safely.
Same is applicable to drugs. I typically ascribe the word "drug" to synthetic medicines. The natural & edible ones could be called natural medicine or just herbs, depending on what they are used for. They are good and compatibile with nature. It's immoral or evil to prevent people from consuming what is good for consumption, but thesame cannot be said of artificial drugs, even though many are legalized and can be found in drug stores. You could even see their side effects warning written on their labels. Besides, it quite risky to consume them continously like we consume foods, herbs or natural medicines. I think we could categorize all the artificial drugs under their pros and cons. The legalized ones, commonly used to treat diseases seem to have more pros than cons. But I prefer things without cons, which would mean good things like natural medicines
In regards to whether it's right to be told how to consume legal drugs. Well, certain people are qualified for that. They have the right, or it's right for qualified people to prescribe drugs to the unqualified. It'll be wrong not to do so, unless the consumers are qualified to take the right amount without abusing them
Concerning shooting & no rampant overdose in the past, people back then weren't easily exposed to what people today are exposed to.. Today you could easily find anarchist games that seem to encourage and reward people to shoot random characters on the street. And many kids play the games.. They eventually get used to them and probably wouldn't be able to control the urge to kill people in real life. Same as drug usage. In those days, people were likely more preoccupied with things that made them have better self control, preventing them from overdosing on drugs.
There are at least three problems with police state drugs laws:
1. They encourage the chaos and violence that you associate with anarchy but is actually a government construct.
2. They require rights violations as a two-class society of the ruling class and the servant class.
3. Taking away people's property without their permission is stealing, which is not law and order.
There are two fundamentally different sets of laws, the set of laws that people actually believe in and do, and the set of laws people resent and disobey. When a third of the population fundamentally disagrees and disobeys the drug laws, you end up with lots of violence in drug wars. Countries learned early on that alcohol prohibition is more harmful than helpful because it leads to gang violence, and legalized it as a result, but they hypocritically maintain prohibition for all other drugs despite alcohol being the obviously leading cause of drug deaths by a wide margin.
Regarding prescriptions, if a doctor is more qualified than someone else to use a prescription, then libertarian laws still allow people to use their adult mind to make the adult decision to go see a doctor. As an adult, they are to make adult decisions. The government treating everyone as children who cannot make their own decisions is not only authoritarian, it denies intelligent adults who know better than doctors to make superior decisions. For example, during the Covid hysterics, it was prudent to take Ivermectin to help cure the Coronavirus. However, doctors didn't to that. The government is incompetent. Their choice of law demanding when drugs are prescribed and when they are not is also incompetent. I am a competent person and cannot have my right to select the correct drugs be trampled by incompetent government bureaucrats who cannot respect human rights. A society of personal responsibility is a healthy, secure, society. A society relying on the government as their parents to make the adult decisions for them leads to a weak society, as well proven by not just authoritarian states like North Korea but certainly by nanny states like the UK and California where mental illness is rampant as people cannot cope with life because they rely only the government which merely helps big pharma sell them pills. Individuals care about them selves more than the government cares about them, so they can make better decisions about what pills go in their body than the government if not on average then certainly by many, and it isn't fair to damage the health of the intelligent minority by denying them medication because other people are stupid and irresponsible. I strongly resent that because other people are too stupid to make good medical decisions, I have to also be arbitrarily subject to their stupid decisions by law.
Anarchist societies are nowhere to be found anywhere on Earth, and are not promoted by any video game I'm aware of. GTA is a game where there are lots of police trying to enforce the laws. Anarchist societies are also not human nature and are likely to never happen. The same drug laws most countries started with are not anarchist, but socially liberal or libertarian.