This article contains spoilers for "One Battle After Another."
"One Battle After Another" takes many, many liberties with "Vineland," the Thomas Pynchon book that inspired it. However, it does keep some of the novel's central elements, like the generational shift in revolutionary ideas and government administrations squashing resistance.
Pynchon's book shows how Nixon's politics and federal interference sabotaged the 1960s' counter-cultural movements, only for the rampant consumerism and capitalism of the Reagan era to squash any remnant of the '60s' revolutionary spirit. "One Battle After Another" retains some of that, but it's easier to miss the first time around.
That's because the film's migrant detention center-raiding, office building-bombing revolutionary group French 75 is d