FBI's priority being terrorism has helped them regroup as everyone has made mention to. There's also less rackets but more competition from other OC groups that weren't as prevalent in the 80s. You also have less of a recruiting crop thanks to changing neighborhoods. There aren't nearly as many predominantly Italian American neighborhoods.

Less labor racketeering but they've compensated over the years at least in NYC by getting involved in Wall Street/white collar schemes but they no longer have even maybe 25% of the influence in unions that they did in the 80s.

Bookmaking is still the prominent money maker in LCN, followed by drugs. But things like hijacking, murder for hire and even loan sharking can't be considered anywhere close to the level it was in the 80s.

LCN was a billion dollar enterprise in the 80s.