OakasFan, I'm still wondering what's your view on Colombo/Bonanno squad supervisor Lindley DeVecchio describing in his FBI documents that "most" of Gregory Scarpa's information was singular and unavailable from any source, especially information on crew realignments, leadership changes, and induction ceremonies.
In my view, that completely disproves the notion that, as you have stated before, most made mobsters are cooperating with the government, otherwise this information from Scarpa would NOT be singular/unavailable from any other source.

Other than that, you of course have the argument that "most" mobsters do, at some point in their careers, heavy stretches in prison - stretches in prison which they would avoid if they were cooperating with the government.
You of course also have the notion that, from the 1980s-2001, the Mafia was at the top of the FBI's priority list, meaning they were dedicated to taking it down. If most members were cooperating then the government would effectively be trying to eliminate it's own paid employees.
You also have the notion that, if most mobsters were cooperating, the remaining ones would all be very, very, very quickly arrested and detained. At that point, all that's left would be cooperating witnesses so, naturally, the FBI could shut them down and the Mafia would be eliminated.

Do have a proper argument to these points? Or are you going to continue with the same old, "Omerta is dead," "You can't make it in the Mafia if you don't rat," vague comments?