The hippie movement collapsed because it was fundamentally about self-fulfillment. In the '60s it was I-Me-Mine against the sense of honor and duty and service and community that helped us win WWII. Tony Judt made the point that the 'boomers were the first generation of teenagers in the history of the world: functionally mature adults who were required to shelter with their parents rather than joining adulthood. Over time, the background of service and community had been demolished (see: Vietnam) thus the selfishness set its lower bound at nihilism - Days of Rage, Altamont, etc. The archetypal protest move of the '60s was a love-in because it pissed your parents off. The archetypal protest move of the '70s was setting off a bomb at a bank because your parents were inured to love-ins. The '80s brought low interest rates and tax cuts and made acquisitiveness easy. Plus, it pissed off your parents. Now? Now you can piss off your kids by voting Trump. 'boomers are fundamentally selfish trolls.