Why is it so ridiculous for some drugs to be legalized? Are you hurting anyone else but yourself if you want to do a drug? You're ruining your life, not mine. You don't need drug laws to keep people from doing drugs and neglecting their children, you just need neglect and/or abuse laws.
For people that want to ruin their own lives, why not let them? They'll quickly realize that people don't want to hire drug addicts and that society won't pay for their stupid habit.
Instead, we spend billions of dollars a year to prevent stupid people from doing stupid things.
rudeguy: Libertarianism isn't about conspiracy theories, it just so happens that some of them have crazy ideas. You might want to read up on this:
http://en.wikipedia.org/wiki/Libertarianism
It emphasizes personal liberty and a limited government. What is bad about that? The government should only be as big as it needs to be to do critical government functions. It shouldn't be everybody's parent.