If you can remember the 1960s and particularly the lyrics of the protest songs you probably weren't there. My recollection of these hippie peace fests was the cloud of pot smoke and utterly stoned participants.
Heck, that sounds like any Black Crowes concert. I saw them in San Diego back in the Navy. I was really worried that I might breathe the ambient "air" too deep and get my number called the next day for random urinalysis.