the yakuza of which i know little is based in japan.
i have never read of a canadian,u.s.,european,russian yakuza arrest???

as far as the chinese the biggest criminals r those allowed to operate by the communist gov't.
even in china triads and tongs r second place. if the state is not happy with what u r doing that is it.
as leader of a triad group how r u top dog if u have to pay off or are being used by the gov't?

and the solntsevskaya bratva is a myth when was the last time any of these guys were arrested anywhere showing a structure or direction/administration.
the same case in russia as in china.if the state doesn't want your organization to operate it will cease to exist.

semion mogilevich is a good example of this. arrested briefly 2008 i think and then suddenly all charges dropped. what has any international criminal agency indicted him for since being released??