Not first hand, Uncle had me somewhere else during that time.
My take on the news reports we got, was that what the Commies couldn't win on the battle field, they accomplished on the streets back home.
I'm talking about the race riots of the mid 60s, not the hippies and the anti-war protests. Watts 1965, Harlem 1964, Newark and Detroit 1967, etc.
With LBJ in office, the rioters thought (correctly, as it turned out) that the mobs could smash, burn and loot without much consequence.
There is a similar thought process at work now. The mobs think they can do as they please with no consequence.
Nixon capitalized on this and made "law and order" a major campaign theme. Note how after he took office, the urban violence tapered off. That's because the rioters know their asses would be shot.