 Jewish-American organized crime derived from dislocation and poverty, where language and custom made the community vulnerable to undesirables, the sort of thing that fosters criminality among any other ethnicity in a similar situation.As American Jews improved their conditions, the Jewish thug and racketeer either disappeared or merged into a more assimilated American crime environment.American Jews quietly buried the public memory of the gangster past; unlike the Mafia, famous Jewish American gangsters like Meyer Lansky, Dutch Schultz and Bugsy Siegel founded no crime families.