id go as far as doubting its at all of it, but AFAICT every recent generation had some good thinking about the problems and were keen on dissenting somehow when they were young.
even a lot of the boomers (who are seen as very conservative now) had their counterculture thing when they were young.
i think my biggest point with this is that the kids are generally alright and we can do good by laying off the juvenoia a bit.