You're going to refute something that is common knowledge? Turn on the news and watch for the reports of "accident was caused by intoxicated or under the influence driver".
How many examples would you like? I can probably go to any local paper's website and get you some links in about 5 minutes. It's common knowledge.
Not every user is irresponsible...No I didn't say that.. but let's think about it.. if you're using an illegal drug, what other laws do you see as "loose guidelines?" You can't assume that though they may use illegal drugs, they are upstanding and smart enough not to use the illegal drugs responsibly.
Crack and guns are available widely too... should I pick some up for you? Just because it's there, doesn't mean you need to have it. You're the one going wth the anarchist "screw everyone else as long as I get mine" premise. Of course if you accidentally take my weed and I kill you for it, I shouldn't be punished, because that would restrict my personal freedom
But I guess I'm just trying to annoy you with all this talk about laws and moral and such. I have to run too as I'm late for my bible thumper meeting where we talk about your satanic misogynistic ways, and how to use prayer to change things