I just moved back from LA. LA is all Mexican Mafia and the street gangs they pledge allegiance to them. However, LA is huge and spread out so are there some independent bookies ..sure. But there is no Mob like NYC controlling construction, unions, garbage. Never was. You meet some Italians here and there. I went to an Italian festival in Hollywood once, but there is no concentration of them. As far as white ethnic groups more Jews (Persians especially) and Armenians. Armenians live in Hollywood, Burbank, and Glendale. There is a gang called Armenian Power. Armenians are tough.