Rape and murder involve coercion. It is within the legitimate purview of government to prevent coercion.
"A false representation of a matter of fact—whether by words or by conduct, by false or misleading allegations, or by concealment of what should have been disclosed—that deceives and is intended to deceive another so that the individual will act upon it to her or his legal injury."
Do you believe that the government has the right to prevent fraud? Do you believe the government has the right to force people to disclose to their buyers the harm that may come from the use of their products? I do.
The reason I do is because of simple economics. What if everything was laissez-faire to the point that there were NO restrictions? A company could claim anything and sell you anything. And until you use it, you would have no idea that it could kill you. Some of these drugs, if not cut are a single trip. How would you know until you were dead? But what if it was not drugs? What if it was an improperly wired drill that as soon as you used it, it killed you from electrical shock? Or a propane tank or natural gas appliance that blew up and killed your family?
In order for commerce to exist, there has to be three things that are trusted. First, the currency has to be trusted. Second the method of payment has to be trusted. And third, there has to be a trust that the exchange was fair to both the buyer and the seller. If not, if every time you purchased something, you did not trust that it would be "right", you would have to disassemble and check the product. Think about this the next time you are at the grocery store. How do you check a can of peas or the fish behind the counter, or the pot pie in the frozen foods. Is that beer or is that piss in a bottle?
Do you know of any drug dealers that tell the 14 to 16 year old kids that if they take a hit of crack it can kill them? Or permanently fry their brains with LSD or other hallucinogen. Do you know of any drug dealer that practices TRUTH IN ADVERTISING? I dont.
Selling powerful drugs to individuals of impaired judgment either through age or lack of judgment to gain profit is fraud - period. No ands, ifs or buts about it.
And you know what, if you want powerful drugs ... you can get them. Yes you can get cocaine and other mind altering substances. You just have to get them through a Doctor is is trained on the dangers of these powerful drugs. And those doctors should know what will kill you, fry you or make you sick.