If it wasn't for Vietnam, would we be a leftist society today?

[Uncle Albert/Admiral Halsey]

Perhaps the left would have staved out a longer than they did OTL, but eventually conservative resurgence would have taken place. No society permanently stays left (or right for that matter), and eventually, we'd shift over to the right. Maybe, just maybe, by the butterfly effect we would be more of a right-wing society than we are now.