Okay, please cite one civil liberty that hippies gave us.
The counter-cultural landscape of the 60s gave way to social acceptance for gays and lesbians, political demonstrations as a mark of free speech, recognition for women's rights (with special relevance to the freedom of choice), environmentalism and ecological consciousness, and last but not least some damn fine pieces of art and music.
Nope. Political demonstrations have
always been common in America, including protests during WW-II, prior to WW-I, riots all during the Civil War, etc. Hippies didn't invent them, they just aimed them at overthrowing the government so they could replace it with totalitarian communism where nobody would be allowed to protest ever again. They were tools.
Women's rights likewise had nothing to do with the hippies and everything to do with the changing opportunities for women in the workplace (which had been happening since the industrial revolution, accelerated after WW-II, and jumped forward with the pill). All hippies did was leave them with fatherless children, VD, and a conviction that acting just like men wanted them too was a mark of "freedom".
Likewise, the landscape for gays and lesbians changed far more in the 80's under Reagan than it did in the 60's, except for the part about gays getting into the drug culture (and thus killing thousands of times as many gays as cultural oppression ever did).
And environmentalism owes more to Nixon than the hippies, as it was Nixon who pushed for all the clean air and water regulations.
And as for art and music, you've got some darn fine music from all sorts of artists right before they O.D'd, and rock & roll would've proceeded just fine without the hippies (who followed the Beatles instead of the later, more innovative acts that didn't pander to hippies. Even Bob Dylan despised hippies.
Finally, it was the hippies who showed up on the starship Enterprise in their go-go boots and brought the series to a humiliating end, whereas it was the geeks and nerds who resurrected it in syndication.