People wonder what happened during the 1960's. I can explain it very easily, World War 2.
Millions of US citizens went to war during WW2. The vast majority of them came back with Post Traumatic Stress Syndrome. This "greatest" generation became the generation of alcoholics and abusers. The children of the "greatest" generation enacted more laws against drunken conduct like driving and abusive actions than any generation in any nation in the world.
Pretty simple, people inact laws when they recognize that there is a problem. Sure, people talk about familyl abuse and alcoholism occurring before WW2. The difference is that this only affected the minority. After WW2 family abuse and alcoholism affected the majority and that is why so many laws have been passed by the children of the "greatest" generation.
What else happened because of WW2? Dysfunctional families raising children who believed conflict is a normal everyday thing.
When these dysfunctional kids rebelled against their parents, like most generations do, they created so much conflict with protests and terrorist acts that it changed the world.
The terrorism of the dysfunctional "American" kids of the 1960's paved the way for the World Wide terrorism we see today. The huge bottle throwing protests of the 1960's US were broadcast around the world and today we see that same thing all over the world. News reports of Weathermen and the Symbionese Liberation Army terrorist acts traveled all over the world. Now they are repeated all over the world like never before in history.
People think Hitler lost WW2. He really didn't. Hitler created an evil that has bred dysfunctional people who believe conflict is inevitable and who cannot work with or even listen to anyone that disagrees with them.