In the East Boston and Revere area's there are presence of Black gangs, Hispanic gangs, Asian gangs, and Bikers, none of this exist's in the North End. But the other groups know who the Mafia people are and respect them in those areas shockingly immensely. If you saw Mark Rossetti's bust, there are Dominican drug dealers in his case that were working for him, and paying him every month. The number one allie to the Mafia in Massachusetts is the Hell's Angels, and the Outlaws are coming around as well. If things get heavy the Angels got the Patriarca's back 100% But I will answer the question with there is an understanding among the different groups, and everyone gets along.