Can you provide evidence that the counter-protesters were the first to attack? All evidence seems to point to white supremacists initiating the violence by throwing bottles. After that, the counter-protesters have every right to fight back.
I watched a LOT of videos. (I should have taken better notes, my bad.) As I recall, coverage from "vice" and from TheRebel showed footage of counter-protestors initiating violence. Were they goaded, sure!