Keep spending your hard earned money trying to control your neighbor - and let me know how that works out for you.
For most of us it works out quite well that's why throughout all of history man has seen fit to create one form of government or another to do just that.
It is a reference to the Leviathan, by Hobbes, where in he lays out one of the earliest expressions of the idea of social contract theory and often considered one of the most influential works of political thought ever written. The basic idea being we all give up soveriegnty to govt for some reason. Hobbes lays out some ideas about human nature and notes that the natural state of man is all men competing against all other men. He notes that in the state of nature there will always be conflict and that people basically are willing to give up their right to total self governance to escape the state of nature and that it is to our benefit to do so.
In sum I imagine that as soon as I am not spending money to control my neighbors one of them will come shoot me the first time I mow my lawn at an hour they take exception to or they want something I have, or perhaps just because they don't like me. We can stop regulating things and some big company that stands to make a profit by not disposing of their industrial waste properly can put it right in your drinking water, or better yet right in your yard or house since no one can control them. Let me know how that works for you.
None of this is to say the government doesn't have some responsibilities (or voters who put people in office for that matter) as to the types of laws to be passed nor is it to say that there are not legitimate policy determinations about the types of things we want the government regulating, or otherwise doing. It is to say that without function government life would be much worse for most of us or as Hobbes described it "solitary, poor, nasty, brutish, and short."
Forgive me if I dismiss as unconvincing your one line attempt at refutation of a classic and enduring political work.
I used to know a rough/ruff? figure for the percentage of people imprisoned for some type of drug charge but today I have no idea.
I think it would behoove the discussion to make sure you are getting what these statistics are telling you correct. There is a difference between a drug defined crime and a drug related crime and drug using lifestyle crimes. There are drug defined crimes e.g. possesion or possession with intent to distribute and then there are drug related crimes which are "offenses to which a drug's pharmacologic effects contribute; offenses motivated by the user's need for money to support continued use; and offenses connected to drug distribution itself." There are also drug life-style crimes. All might be generally referred to as drug crime.
It is also worth separating types of drugs IMHO as I believe some have more social harm than others.
I can tell you from the time I spent working at a law firm that did criminal defense that the vast majority of crime I saw was drug related (i.e. the person was committing them to score drugs things like burglaries robberies, lots of forgeries and other ID theft type stuff, prostitution, Then there are the acts of violence towards others with underlying drug issues, like the young man that beat a woman to death during a burglary motivated by is coke habit. Also child welfare cases because people weren't taking care of their kids because of their drug addiction. DUIs are another drug related case which range from minor to tragic (and then often involve homicide charges) and lastly cases of possession or possession with intent to distribute) or stemmed from mental illness (and often those two elements were present at once). If people weren't crazy or doing drugs there would be a lot of crimes that wouldn't happen.
Aside from DUIs and possession with intent to distribute I cannot think of seeing many cases involving pot where as people doing meth almost invariably had laundry list criminal records. That is why I think it is worth distinguishing types of drugs.
How much does it cost (tax dollars) to house and feed all the drug prisoners?
I'm sure it varies by state and perhaps in the federal system as well but in my state I believe it is roughly $47K to incarcerate someone for a year. It is enough to give you pause about the way we handle a lot of crimes. I've seen cases where I do not feel much safer with a particular drug criminal in prison. I've also seen cases where it is a "drug criminal" and society should be very pleased the person is locked up.
A lot could be said about US drug policy, whether it is well guided, how its been executed, including what has not been done for that matter. Meaningful discussion would be more lengthy than this medium of communication is well suited to and would need to rise above over simplistic bumper sticker politics. Since it is all off topic I'm certainly not going to spend my time addressing it at greater length.