There was no dissent
Woodstock Generation doesn't like dissent -- or do they?
He should read the book by the guys who funded and created the whole festival (title is something like 2 Men With Unlimited Capital).
They claim they were extorted by Abbie Hoffman and the Black Panthers to handover $10,000 and let them have booths at the festival (all of this during the planning of the even) or else "face the consequences" of agitators, disrupters, and bad press.
And in the end, the mob tore the fences down and burned down the "capitalist" food vendor's booth. You can even find a reference to this in the film when some hippie MC (Wavy Gravy?) is announcing the free breakfast and saying that if any of you still believe in capitalism, you might give him a little business too.
There were a couple deaths and a couple births at the festival. Don't know if there were fights or murders. Half a million people, I would assume at least 1 fight broke out.