that's just bullshit, even today, cosa nostra ai its weakest is stronger than russian mafia in the united states

Alleged Russian organized crime boss, believed by European and United States federal law enforcement agencies to be the “boss of bosses” of most Russian Mafia syndicates in the world.
Mogilevich is believed to direct a vast criminal empire and is described by the FBI as “the most dangerous mobster in the world.” He has been accused by the FBI of “weapons trafficking, contract murders, extortion, drug trafficking, and prostitution on an international scale.”

Mogilevich’s nicknames include “Don Semyon” and “The Brainy Don” (because of his business acumen). According to US diplomatic cables, he is said to control RosUkrEnergo, a company actively involved in Russia–Ukraine gas disputes, and a partner of Raiffeisen Bank.
In 1994, the Mogilevich group obtained control over Inkombank, one of the largest private banks in Russia, in a secret deal with bank chairman Vladimir Vinogradov, getting direct access to the world financial system. The bank collapsed in 1998 under suspicions of money laundering. Through Inkombank, in 1996 he obtained a significant share in Sukhoi, a large military aircraft manufacturer.

Mikhail Maratovich Fridman, born 21 April 1964 is a Russian entrepreneur, business executive, and philanthropist. With Russian and Israeli citizenship, in 1988 he co-founded Alfa-Group, a large multi-national conglomerate.

In 1990 he co-founded Alfa-Bank, which is now the largest private bank in Russia.
Fridman currently sits as chairman of the supervisory board of Alfa Group Consortium, and he is also on the boards of Alfa-Bank[ and ABH Holdings, which is the Luxembourg based holding company of Alfa-Banking Group.