I think he's right because in the 80s with the process the Commission and the war declared by the FBI to the five families, the bosses who had spent years to gain power but above all mutual respect, were incarcerated with long sentences and emerged various sociopaths said above.

Casso and Amuso were violent drug traffickers, same thing for Gotti and Gravano while the first was still alive thanks to the protection of Dellacroce and with his death, Gotti knew he had to strike first and did murder Castellano; Gravano was more opportunistic and realized that Gotti would give him all the blame and decided to rat.

Persico even though sentenced to 100 years decided to remain the boss and found a dynasty, a move that will lead to the start of the war in the early 90s.

Escaped only the Bonannos, because they had been kicked out of commission for the Donnie Brasco affair and the Genoveses of which the FBI until the rat of fish cafaro thought the bosses was Fat Tony Salerno and not Gigante.

Fr Philadelphia were the Genovese to convince Caponigro to make murder Angelo Bruno to take possession of the racket caponigro in north jersey and to operate without a permit in Atlantic city and make bosses Nicky Scarfo that for its violence had been exiled in atlantic city for order of bruno, the rest is history's family philly has never be the same.

For other families the 80s were the beginning of the decline: the outfit has lost its casino in las vegas, the death of Patriarca sr and control of his son port to ruin the family, in 1987 died Trafficante and Miami became an open city etc.