If we were to somehow perform a Principal Component Analysis on the amorphous, contradictory mess of "hippie ideals", we could probably distill them down to something like a call to implement a post-scarcity, socialistic society with few restrictions on human social behavior.

Of course, that kind of radical change isn't achieved by smoking pot and playing the guitar in downtown San Francisco. It's achieved by major technological changes that would make such a society even functionally possible, like practically-unlimited renewable energy sources. Needless to say, nobody involved in the 1960s counter-culture movements was in any position to actually implement the kind of changes needed to realize the grand vision of an ideal hippie society. (Some of them tried to do the next best thing, and form their own mini-societies in communes out in the country, all of which ultimately turned out to suck.)

I would also note that another 1960s icon, Gene Rodenberry, at least seemed to realize that the kind of changes needed to implement a hippie utopia would likely only be possible after many other practical societal problems were solved via technology.