Complete BS.
No, basic market economics and borne out by history:
"The lush traffic in alcohol beverages during the violent years of 1920 to 1933 had laid the base of organization for a number of criminal gangs. The termination of the ban on liquor deprived these gangs of their most lucrative source of money" - Special Committee to Investigate Organized Crime in Interstate Commerce
The primary effect would be to produce a nation of useless drug addicts
Already refuted in the text you omitted: "we already have drug use because very few of those who are undeterred by the inherent harms of the drugs themselves are deterred by the possibility of arrest and conviction."
Also refuted by history - legalizing the addictive mind-altering drug alcohol did not produce a nation of useless alcohol addicts.
Oh dear.
Nanny started his weirdness with b*tching about quotes.
As if we don’t know what was just posted.
(I guarantee he doesn’t really know)
That's debatable.