>>98810258Al Capone and Lucky Luciano both ran with Jews and Irish, they also had black contacts in Harlem. Bugs Moran was French and worked with Irish guys, Italians and Jews, not sure about others. There was a Japanese member of the Chicago Outfit (though that was in the 60s iirc).
Only the hard core Sicilians like Maranzano were super parochial, not even dealing with the wrong kind of Italians, but Murder Inc, a Jewish outfit connected to Luciano, dealt with that..