But does it matter whether theyre in the same ball park or not? Everything on the face of this Earth has the potential to hurt someone, so I see no reason why the government should regulate that. I could make the argument that butter knives are vastly more dangerous to humans than marijuana, yet nobodys lobbying to make knives illegal here. I could choke myself by rolling up my mousepad and stuffing it down my throat, but nobodys lobbying to make mousepads illegal.
What Im trying to drive at is that if you try to regulate one thing, youre going to end up having to regulate all things, because everything has the potential to be dangerous or lethal in whatever odd way. Saying certain things are more or less dangerous than others is pointless there is only one person ever to have officially died of a marijuana OD, so if I convince three really stupid people to stuff rolled-up mousepads down their throats so that they choke to death, I have just made mousepads 300% more dangerous than marijuana.
Point being, having the government regulate the use of dangerous things is about as productive as trying to kill every mosquito in the world to prevent the spread of malaria.
Yes, it is up to the society to endeavour and ensure the production of responsible citizens. Regardless of whether or not this is achieved, it is then up to those people to use drugs, weapons or what-have-you in a responsible manner, or face the consequences. You can't go around trying to control everything. It not only doesn't work, it's counter-productive and usually more damaging than regulation would have ever been.
Like the old saying goes: "It's not what you've got, it's how you use it."