it's easy to say in HINDSIGHT what was really going on behind the scenes
Others saw it for what it was at the time. It's just that mentioning the truth in public was likely to get the COINTELPRO sent to keep tabs on you before the FBi took you out.
You can look at conflicts going on today and see the same factors at work. Sometimes it's more evident than others and you do sometimes encounter 'true believers' (as with someof today's jihadist elements), but even then even those movements can ultimately be traced back, directly or indirectly to their roots in class struggle (the ruling class among various groups using religion to secure their hold on power, for instance, gave rise to the Sunni/Shiite divide- and religion continues to be a useful tool for those who use it to control the masses, giving rise to the divides that fuel the current conflicts between Western neochristian and post-Liberal societies, traditional Jews/Zionists, and Islamic fundamentalists in the Middle East).
It's debatable how many among the Taliban, for instance, are true believers and how many (especially among the most influential persons) simply recognize the power of religion as a tool of uniting and controlling the masses.
again, pawns of the ruling elite- an old story played out many times in the history of the world
but if you were 18 at the time, you would have been there right next to gadfly.
Perhaps. Perhaps I would have been in prison or Canada as a conscientious objector. Perhaps I would have been taken out by the FBI for being associated with groups sympathetic to world democracy.