Comparing drugs to alcohol is an unfair comparison. I hear this all the time. For one, alcohol has a long history so we already know the consequences. We have no idea what would happen were drugs legalized.
Neither will crime decrease if drugs are legalized. Therefore it isn't a war on people. Criminals will find new ways to make money like selling drugs to children who will not be able to purchase them legally. The notion that criminals will become law-abiding citizens because drugs are legalized is a very optimistic assessment. If money were free would crime end? It would actually increase crime. Increasing welfare has not decreased crime but rather created a new dependent class which is exactly what would happen if drugs were legalized.