I'm not going to say I was opposed to the Vietnam War. I'm going to say I'm opposed to war. But I'm also opposed to protests that deny other people their rights. ↗
The Berlin Wall wasn't the only barrier to fall after the collapse of the Soviet Union and the end of the Cold War. Traditional barriers to the flow of money, trade, people and ideas also fell. ↗
I believe Johnson understood that the reason was Vietnam. I also believe that he felt that if there was a way to communicate the real issues in Vietnam, that the reasons would be answered or understood. But there was just no way to communicate. ↗