I genuinely don't know how anyone looks at the big US movements since the 2000s from the alter globalisation to Occupy to BLM & see the type of state repression they all encountered & still think, "You know what would have helped? More concentrated hierarchies."

Like, being against hierarchy is as much a practical consideration as it is an ideological one. Every major US movement from the 60's onwards that had concentrated decision makers were absolutely wiped out the moment the state either killed or imprisoned them.