Thing about 60s/70s counterculture is, it didn't become the culture. Rather, its members were recruited by mainstream culture with the promise of wealth and the good life, to betray the values they espoused as youths.
Were Gramsci alive in the 80s, he would be like "See? See? This is EXACTLY what I was talking about!"
This is not really true. While there were a few hippies who moved to wall st., the reality is that only a tiny percentage of the population were hippies (or their cousins). The "older adults" who made up the 80's/90's culture were, for the most part, the "young adult" members of mainstream culture in the late 60s/70s.
It's just like the way that the 90s mainstream culture in the UK was not based on punks ... not because absolutely no punks "crossed over", but because, as a percentage of the population, there were hardly any punks to start with (just a lot of media noise).
Were Gramsci alive in the 80s, he would be like "See? See? This is EXACTLY what I was talking about!"