How to win war on drugs

Joshua (a computer): "A strange game. The only winning move is not to play. How about a nice game of chess?" (Wargames 1983).

The war on drugs has gone on longer than Afghanistan, and its not been much of a success either, and our DOJ wants to restart the war in earnest.  Here's the most obvious outcome of the war on drugs, incarceration rate in the USA has put us in 1st or 2nd place world wide.  Sorry this is 10 years out or date, USA now has an incarceration rate of nearly 700/100,000 people, good for 2nd place world wide.  An arrow marks the beginning of the war on drugs. 

As it turns out like with alcohol, prohibition just doesn't work, and for very good economic reasons.  See here for an explanation.  So why do we play this game?  S