Historians claim that a majority of the congressmen who voted for the prohibition amendment were under the impression that it only restricted the sale and manufacture of hard liquors and would leave beer and wine out of it.
It was the
Volstead Act which condemned the manufacture and sale of beer and wine. For some reason home winemaking was never criminalized.
I recommend the PBS miniseries on the subject. It turns out that the temperance movement wasn't in favor of prohibition, and both the temperance and prohibition movements were more concerned about all the rape and abuse of married women than about the booze itself. It was a different time. Hardly anybody with a Y chromosome could be convinced that such a thing as rape is possible within the bonds of marriage, for example. In the working class there was a lot of rampant drunkenness and associated mayhem when the drunks finally got home after drinking all night, and there was no law providing consequences for said mayhem.
That, and the majority of beer bars were owned and operated by breweries, with the effect that there were neighborhoods that were nothing but saloons.
In short, prohibition was the wrong solution to a number of very real problems they had at the time.