Why did prohibition fail?

Anti-Liquor campaign in America dates back since 1750 when leaders of that period made repeated efforts to discourage the excessive use of distilled spirits. Many religious and political leaders were beginning to see drunkenness as a national curse. Abraham Lincoln said of this period that intoxicating liquor was 'used by everybody, repudiated by nobody' and that it came forth in society 'like the Egyptian angel of death, commissioned to slay if not the first, the fairest born in every family'. The most powerful organization against the consumption of alcohol beverages is the so-called 'Anti-Saloon League' which was founded in Washington D.C. on December 18, 1895. One of its leaders once said, promoting his organization, 'It has not come [...] simply to build a little local sentiment or to secure the passage of a few laws, or yet to vote the saloons from a few hundred towns. These are mere incidents in its progress. It has come to solve the liquor problem.' The organization's motto was 'The saloon must go' and they knew exactly how this was to be accomplished. The League struggled on without great successes. Americans continued to consume the liquor increasingly until the enforcing the Eighteenth Amendment, which turned Prohibition into law. The Eighteenth Amendment was devised by Wayne Wheeler of the Anti-Saloon League and was presented to Congress on January 16, 1920, by Andrew Volstead, congressman from Minnesota. At midnight of the same day all saloons were closed down throughout the United States, and national prohibition descended upon the earth, climaxing a long campaign to forbid the use of liquor within America's boundaries. The eighteenth amendment was " After one year the manufacture, sale or transporting