To BullDogg:
http://www.lindasog.com/military/vietnam.htm
This link says it all.
There always has been, and always will be, American opposition to war. The Revolutionary War had the highest, (estimated at 80 percent) and that was because it was fought on home soil. Opposition to WW I was 64 percent. During WW II it peaked at 32 percent. The number for Korea was 62 percent, and 65% opposed Vietnam.
http://www.lindasog.com/military/vietnam.htm
This link says it all.