i think you downsize the mafia too much and hype other groups too m uch, i don't see a single new criminal group in the states even close to the mafia of even 20 years ago
that's coz i say i think the italian mob is still the most powerful at national level although in many part of the country is not even present
but most of the other groups are just local and their influence is limited to a city or a neighbourhood
i doubt for example that blood and crips or mexican gangs have any sort of cooperation national-wide, they just operate at local level