Great article..
The decline of the wine industry and prohibition did have one positive influence though. Once prohibition was repealed, more modern and scientific winemaking techniques were researched adopted. This lead to some huge breakthroughs in winemaking science.
For example, and from what I understand, the discovery of MLB and its affect on wine was due, in part, to the fact that the US wine industry was re-starting and serious study into the science of wine was being made as a result.
I still see prohibition as evil. We were supposed to believe in freedom, but the prohibitionists were not happy to simply abstain from alcohol themselves. Through political trickery, they took a basic freedom away from others that did not agree with them for a period of 19 years.
Still, one needs to wonder what the US wine industry would be like today if it had not been decimated and rebuilt in more modern times.