Why not pass a Constitutional amendment banning alcohol consumption?

I think alcohol use in America is counterproductive to economic growth in this economy, especially in war times with terrorism overseas. If we passed a constitutional amendment ratified by the states that bans the sale, purchase, consumption, possession, and trafficking of alcoholic beverages, with penalties of... show more I think alcohol use in America is counterproductive to economic growth in this economy, especially in war times with terrorism overseas.

If we passed a constitutional amendment ratified by the states that bans the sale, purchase, consumption, possession, and trafficking of alcoholic beverages, with penalties of prison or fine not to exceed 15 years prison prosecutory sentence
Why not?
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