[PaulDavisThe1st]

I want to add that my final paragraph above really describes the fundamental flaw with countercultures if you believe they are a vehicle for political change. They are really premised on the idea that it is possible to make a set of personal, individual choices and that if enough other people make similar choices you can build a sort of parallel society to mainstream culture. If you believe in them as a mechanism of political change, you tend to imagine that parallel society serving as an example/lesson to mainstream culture and being adopted by it.

As Coyote's observations note, this can work for "culture" issues, which do indeed tend to be the result of individual choices about consumption, but it rarely works for issues rooted in the distribution of political and economic power. These require political movements demanding change from the mainstream.