I would argue that a counterculture has to be oppositional and can't be happily compatible.
The hippies who were burning their draft cards, dropping out of school, and living as mendicants were a counterculture that could not truly coexist with the mainstream.
These dramatic characters inspired a youth culture that adopted more moderate signifiers (long hair, folk/rock music, nonviolent protest, maybe vegetarianism/meditation/yoga) that could coexist with the mainstream.
The hippies who were burning their draft cards, dropping out of school, and living as mendicants were a counterculture that could not truly coexist with the mainstream.
These dramatic characters inspired a youth culture that adopted more moderate signifiers (long hair, folk/rock music, nonviolent protest, maybe vegetarianism/meditation/yoga) that could coexist with the mainstream.