http://www.amazon.com/Last-Call-Rise-Fall-Prohibition-ebook/...
Actually, after the U.S. ended alcohol prohibition virtually all of the organizations devoted to booze either went legit or drastically shrank in size and scope. We would've been better off without alcohol prohibition in the first place, but ending it was certainly a net win.
If you're interested in the history and parallels of alcohol prohibition to today's drug prohibition, Daniel Okrent's Last Call: The Rise and Fall of Prohibition is pretty good: http://www.amazon.com/Last-Call-Rise-Fall-Prohibition/dp/074... .
From that interview I learned that there is a lot about the politics of the day that I didn't know. For instance did you know that the KKK supported the Suffrage movement (giving women the vote) because they believed women would vote for Prohibition, which could be used to target Catholic immigrant groups? (Immigrants were a major target of the KKK at that time.)
I haven't gotten around to getting that book yet, but it is on my list of books to read.
If you're interested, read Daniel Okrent _Last Call: The Rise and Fall of Prohibition_
https://www.amazon.com/Last-Call-Rise-Fall-Prohibition/dp/07...
Good thing the American public learned our lesson and never did anything stupid like that again.