Yeah all of these families are done and have been done for a long long time.

The fact that they try to make out Tommy Gambino to be boss of the "Los Angeles Mafia" is ridiculous. All this because his last name's "Gambino"? He's a legit businessman, pure and simple.
I'm not ruling out LCN having money laundering operations in the Los Angeles area, but when it comes to running the underworld it's street, prison and biker gang territory over there as well as a notable cartel influence of course. Mexicans, Armenians, African Americans, Belizeans, Salvadorans, Chinese, Cambodians, Vietnamese, Koreans, Samoans as well as blue collar white guys all have their gangs in the Southland running rackets in their respective communities. Street, prison and biker gangs are much more ingrained in the underworld there than any traditional kind of "mafia" ever was.

Same goes for San Jose. That's Norteño heartland first and foremost and it has prevalent activity from Vietnamese gangs as well as Samoan gangs.

New Orleans' underworld is an African American drug gang clusterfuck. The NOLA gang underworld is chaotic and bloodthirsty to such an extent it's difficult to conduct any kind of traditional organized criminal activity over there.

Whatever LCN activity is still going on in Pittsburgh, Rochester, Tampa or Cleveland can probably be traced back to NY/Philly/NJ.