What happened to the gangsters of Al Capone's day, when prohibition took away their competitive edge? Did they sell "insurance"? You seem quite passive aggres

What happened to the gangsters of Al Capone's day, when prohibition took away their competitive edge? Did they sell "insurance"? You seem quite passive aggressive, without offering any thoughts yourself. My guess is, most will be unemployed. They aren't criminal geniuses. They've found a cheap way to make money and get high at the same time, most of them.