[Kaj]

Why are they dangerous?

If you use them irresponsibly and cause harm, you are liable for the damage you cause. If you cause harm to yourself, you can and probably will do harm to yourself anyway. If they are decriminalized, do you think there'll be a mad dash for people to start using hard core drugs? Why? Just because they aren't criminal, all of a sudden most people don't care about their kids, their jobs, their bodies, their lives? That's absurd. Some will use them, and if they abuse them, they'll have a heavy price to pay.

Almost everything is dangerous to humans -- driving, eating red meat, drinking hard liquor, working all week, playing sports, using gas grills, having sex, climbing ladders ... let's ban it all.