[X] Fight alongside the villains – The gangs are a stain on this city, but right now they are the lesser evil compared to MS-13. So long as they are focused on removing the Maras, you will lend them a hand.
[X] Stay out of this altogether – Let the gangs destroy themselves, that's just fine. No skin off your nose. While they are doing their thing, you will use the time for social, exploration, or training activities.