It's worth noting that the antiwar movement had less in common with hippies than many people think. Sure, there was some overlap - but the mainstream didn't get the idea that hippies were mainly interested in taking drugs and listening to music from nowhere. Most of the antiwar movement was in the hands of students and everday sorts of people - I think the fastest way to offer evidence for that would be the absence of typical hippie uniforms in photographs of antiwar protests. Something closer to the truth would be that the musicians hippies liked listening to made songs about the antiwar movement, and those songs had an outsized impact on the entertainment available in 2020, because as good a speaker as Noam Chomsky might have been, radio hosts don't put him on after The Temptations.
(I'd listen to a station that did that kind of thing, but that's not how it works presently.)
I can't find the citation, but legend has it that as CA governor, Reagan was in his limo, and was surrounded by protestors in Berkeley. They were chanting "We are the future!" while pounding on the windows of the car.
Reagan got his notepad out, and wrote "If you are the future, I'm selling all my stocks!" on a sheet of paper, and held it up to the window for them to read.
Looking at the demographic breakdown it certainly seems like he got most of the boomers(and their parents). The boomers were in their 20-30s at the time.
No it isn't? We have the benefit of hindsight and don't need to become preoccupied with what a lot of dead people thought about something. Leave that to the historians.
Then it’s worth considering why the prevailing culture at the time didn’t see it that way.