Just give them an offer they can't refuse. Send your muscle to sort it out. Show them who's in charge around here.
No? Oh, ok, go with plan B: let down your facade of being a criminal kingpin at the first sign of trouble and go begging for help, calling them "bullies", because you failed to attract anyone into your clan or build your own defenses.
Time to lock and load those tommy guns. Oh wait, you don't really have those either.