[JustSayNoToNannies]

the end of Prohibition had negligible impact on organized crime in America.

Unless you are prepared to argue that the mob ceased to exist on December 5, 1933.

False dichotomy - there is a spectrum of outcomes between "negligible impact" and "ceased to exist."

That being so, the burden of proof falls on the one making the claim. Where is the evidence for your claim that "the end of Prohibition had negligible impact on organized crime in America"?

[JustSayNoToNannies]

"The end of Prohibition in 1933 was a painful blow to organized crime, which had made considerable amounts of money from it." - THE BEGINNING OF ORGANIZED CRIME IN EAST ST. LOUIS, by Andrew Theising, Ph. D.