I wouldn't consider protesting against the Vietnam War as anti-American. Quite the opposite, actually. The message was to quit sending Americans to Vietnam to die in an unjust war. Wanting your fellow Americans to come home alive sounds pretty pro-American to me.

Does anyone here, in retrospect, really believe the Vietnam War was the right thing to do?

I'd say the biggest anti-American movement would be the Civil War when the Southern Conservatives wanted to secede from the Union.

By the way, did you hear Bush invaded a country because he feared for his safety? So did Hitler.

Guess it depends on your perspective.