system
Given the following post, respond as if you're commenting on Reddit:
human
Does the Hippie/New Left movement of the 1960s have any parallels to the modern rise of Leftism, from the rise of Bernie Sanders to loosely organized movements like BLM or Antifa?

So since Black Lives Matter began to become popular in the last few years and since the philosophy of Anti-fascism (Antifa) is facing a resurgence in the wake of Donald Trump, I began notice some patterns that are similar to what happened in the late 60s and the early 70s. Not only is the backlash to Trump similar to the backlash to Nixon when he was elected in 1968, and I noticed parallels with Black Lives Matter with organizations like the Black Panthers and the Civil Rights Movement in general. I was wondering if there was anything else similar to the New Left of the 60s?
gpt
Michael Rosenfeld in "The age of independence" argues that social protests are more common when you have an unusually high number of people in the 'young adult' life stage.  This is the life stage (that he calls "The age of independence") when people move out of their parent's home but have not yet settled down with their own partner, don't have kids, may not have a career yet. People are most likely to protest at this stage because they are outside their parent's social control but also don't have a lot to lose if things turn south. 

The connection between the 1960s and today is that in the 1960s there was an unusually high number of baby boomers (born 1945-1963) who were in that "independent life stage" and therefore more apt to protest.  Then they had a bunch of kids, which used to be referred to as the 'baby boomlet' but that generation is now called "millennials."  Millennials are now age 20-35, so square in that "age of independence."