The government persists with the drug war because Americans have a moral opposition to drug use: http://www.jhsph.edu/news/news-releases/2014/study-public-fe.... When I was a kid in the 1990's, 70-80% of polled adults wanted to make even marijuana illegal. For drugs aside from marijuana, that's still the case.
Your alternate theories about money and control directly contradict the history of prohibition. Did you know that at the time alcohol prohibition was instituted, fully 1/3 of the federal budget came from liquor taxes? Alcohol producers were incredibly powerful, yet their product was banned because of moral panic. To a significant degree, women's' suffrage happened when it did so they could vote for prohibition.
There is a great PBS series on this: http://www.pbs.org/kenburns/prohibition. It's a story of a grass-roots national movement of Americans, many of them heretofore politically marginalized, rising up against money and power to effect change.
Your alternate theories about money and control directly contradict the history of prohibition. Did you know that at the time alcohol prohibition was instituted, fully 1/3 of the federal budget came from liquor taxes? Alcohol producers were incredibly powerful, yet their product was banned because of moral panic. To a significant degree, women's' suffrage happened when it did so they could vote for prohibition.
There is a great PBS series on this: http://www.pbs.org/kenburns/prohibition. It's a story of a grass-roots national movement of Americans, many of them heretofore politically marginalized, rising up against money and power to effect change.