A historical note hopefully before the thread gets closed.
Way back during the late sixties or very early seventies, a bunch of us did a public interest survey.
One question asked if the respondent thought we should get out of Vietnam.
A later question stated that the French were fighting the Communists in French Indochina and had asked us for military support and assistance. It went on to ask if we should support our French allies against the Communists.
A large percentage of the respondents said we should get out of Vietnam and support our French Allies.