Of course it should be legal. But the way you talk about it is so bizarre. Cocaine has ruined so many lives. It's incredibly addicting to some. It can destroy your nose, literally putting holes inside of it.
Cocaine by itself is a desiccant, it seeks moisture, which is why it gets clumpy in humid areas. When it is used nasally, it dries the nasal mucosa, and triggers a mucous secretion response, which then dissolves it and allows it to pass into the capillaries in the sinuses, throat, and lungs. This cycle of drying repeatedly can cause a sclerosis of the nasal membrane, which can eventually erode the tissues affected by it.
Conversely, when proper hygiene is observed, like with nasal washes, or using liquid cocaine directly, the desiccant properties are eliminated and damage is avoided: this is how ocular cocaine is prepared and used with no adverse effects in medicine - eye surgery, etc.
I take exception to your comment about it being 'bizarre', it doesn't help the conversation to begin with an adversarial tone.
I'm not saying it doesn't have some risks, but I am saying with all other things considered, these are the same risks associated with running, sex, and spirited debates.
Consider this: It's normal for people to do this thing where they feign not being able to function without coffee in the AM but it is somehow not socially acceptable to have a bit of cocaine on some weekends. Let us consider that it's a dual standard for what is essentially the same thing, enhanced attentiveness, a brief euphoria, better focus, and an urge to poop.
If all addictions are equal, isn't the person who can't function without coffee or cigarette the same as people who can't go without a line? So you might ask "I've never seen someone steal to buy coffee, but I've seen people steal to buy coke, why is that?"
My estimate is that it is because one is normalized and one isn't, you simply have a subset of people who are self admittedly okay with breaking 'the law' by doing coke, so naturally they might normalize theft as well since it is a hobby that is so highly penalized only those with the shakiest hold on reality/morality is likely to do it. That distorts the image of it, and we then begin to develop this social stigma.
Ergo, legalize it, you won't have more of this any more than you have coffee-heads who happen to also be thieves.
You neglected to mention that the lethal dose for caffeine is in the same magnitude -- "150-200mg per kg of body weight, or 5 to 10 grams of total caffeine ingested, is considered lethal." [1]
Given that the street price of cocaine in the USA is around $120 / gram [2], it would cost about $780 to overdose. Meanwhile, I can easily and legally order 16 grams of caffeine tablets online (or in any CVS) [3] for $11.49 -- enough to kill two people.
Does this cause you to rethink any assumptions?
Don't forget -- at one time, drinking coffee in public was punishable by death. [4]
[0] https://gracerecovery.com/cocaine-overdose-amount/ [1] https://www.verywellmind.com/can-you-overdose-on-caffeine-21... [2] https://www.statista.com/chart/18527/cocaine-retail-steet-pr... [3] https://www.cvs.com/shop/cvs-health-caffeine-tablets-80ct-pr... [4] https://www.atlasobscura.com/articles/was-coffee-ever-illega...
Edit: Interesting that someone would downvote something that is purely subjective.
Here is the thing, some highs are much more potent and addictive than others. Growing up in the 90's and having seen the damages of heroin, I'd say no, it doesn't matter whether Tobacco or Alcohol are also legal.
Legalizing drugs would make drug addicts far more accessible to drug treatment schemes. Regulating the supply would additionally make being a drug addict a lot safer and less dominating for one's life. Heroin is safe. It's the universe of things around heroin that kill. Lots of being murdered, and going to prison; fent ods, MRSA infections, liver failure from Hep C, AIDS; doing crime and betraying everyone you know to get a substance that costs a nickel a dose to manufacture. All of these are symptoms of drug enforcement, not heroin.
Legalized and taxed drugs make them safer for all and reduce the amount of deaths we see from overdoses.