In most cases, Aliang is not someone unreasonable. Even though in the eyes of many, he's just a rather charming little hooligan, he's never been one to start a fight for no reason. As for his loyal followers, despite not being as principled as Aliang himself, they are definitely not bad people.
However... While it's true that Aliang doesn't "start fights for no reason," thanks to Cordova's relentless trash-talking, which had thoroughly humiliated him earlier, Aliang was more than happy to use this excuse to vent his anger.
And his followers, naturally, didn't mind using Cordova as their punching bag!