the culture that followed the boomers that you're pointing to were also mostly boomer phenomena. Everything is until you hit what is clearly generation X. There are simply too few people born during the baby bust (I was born in 1969) to drive mass culture.
Even though when you look at the official categorization, I'm generation X and Jake is a boomer, we have more chronologically in common with each other than either of us does with the boomers or generation X.
As for your guessing, I'm guessing that you're basically right. (The younger ones are already bitching about the elders who are trashing civilization.) If Kevin Phillips is right, that breakdown is due in about 9 years...
Cheers,
Ben