While music played a big part of social conversion aided by drugs, the driving force for most people was the war and they were fervent about the issue.
The demonstrations and anti-war sentiment grew during Johnson's presidency and the media was easy on him. Then he announced he would not run and Nixon won in '68 after the Bill Ayers inspired riots at the democrat convention.
For a brief time the democrat party was in the crapper. But the war sentiment turned people against the government and Nixon was the government. Since Nixon was a republican, the effort to turn the government around was pushed through democrat voter effort. Had Johnson continued as President, things may have been mush different.
The real catalyst was the shootings at Kent State followed by the CSNY song "Ohio" - 'Tin soldiers and Nixon coming'. The aftermath was the vast majority of the youth becoming democrats, but ironically the mantra most often heard was "government out of our lives". After decades of "question authority" being the underpinning of the free life style social change it is very ironic that the people still hanging on to that philosophy now look to government to run every part of their lives.
Scratch a Utopian ...find a Needy Cult Devotee!!
Music is powerful for the young, for sure, but it was the drugs which really ruined the nation. Drugs do two things..They embolden the user through the loss of inhibition. That causes him/her to do things they would never do otherwise. This is a result of the drug effect on the frontal lobes of the brain which houses judgment. If you turn millions of people like that loose on your society, they will wreak havoc and that is what we had and what we have in America today, in spades. Drug use and addiction is the elephant in the room and people do not consider the damage it does because so many are users themselves and do not want it discussed. Look at the support now for legalization of marijuana? If you can't control it, legalize it. Political correctness is the other driving issue. Social pressures are the unwritten laws which govern civilized society and give power to majority opinion. There is no fraud because people can say how they feel about right and wrong. Political correctness forces a false morality on a society which cannot last because it is totally unnatural. It is soft tyranny and is very destructive on all the functions of society. At this point, with open borders, I think the American haters may have won..Their secret weapon..A state run media just like them, the usurpers of freedom.