This Op-ed is spot on. Johnson lied about the Gulf of Tonkin and got us deep into the Vietnam war. (Do you really think that a north Vietnamese fishing boat attacked a U.S. destroyer?) Mistrust of government metastasized. Its first beneficiary was Ronald Reagan's "eight most feared words - I'm from the government and I'm here to help".
Now we have Trump.
Vietnam: The War That Killed Trust - The New York Times
by Karl Malantes
In the early spring of 1967, I was in the middle of a heated 2 a.m. hallway discussion with fellow students at Yale about the Vietnam War. I was from a small town in Oregon, and I had already joined the Marine Corps Reserve. My friends were mostly from East Coast prep schools. One said that Lyndon B. Johnson was lying to us about the war. I blurted out, “But … but an American president wouldn’t lie to Americans!” They all burst out laughing.
When I told that story to my children, they all burst out laughing, too. Of course presidents lie. All politicians lie. God, Dad, what planet are you from?
Before the Vietnam War, most Americans were like me. After the Vietnam War, most Americans are like my children.
America didn’t just lose the war, and the lives of 58,000 young men and women; Vietnam changed us as a country. In many ways, for the worse: It made us cynical and distrustful of our institutions, especially of government. For many people, it eroded the notion, once nearly universal, that part of being an American was serving your country.