Most Americans were opposed to the Vietnam war by 1967. In the beginning most Americans supported going to war with Vietnam.
SP/4 Al Gore (Vice President of the US) was a GI working for "Stars and Stripes" in Vietnam.
The Vietnam War started as part of the Cold War; communism vs. democracy. The United States feared the spread of Communism from the Soviet Union. And corrupt politicians in Vietnam used this fear to justify their desire to keep the wealth of Vietnam for themselves.
politicians and greed
They were politicians who supported the aggressive conduct of the war.
There was NO FAITH in politicians.
Americans opposed the Vietnam war due to young men being drafted into the military. Americans also opposed the war crimes that the Viet Cong committed.
The same reason the US started fighting : POLITICIANS. Politicians in general and liberal politicians in particular.
They opposed the violence
The politicians. If they had let the commanders run the battlefield, there would have been less casualty. Instead, the war was run by politicians.