For me, the really ugly part of the Veitnam war was played by the unprincipled apologists for marxism who as much as spat in the face of the honorable people from our armed services.
I've been out of Nam for 33 years now and probably my most vivid memories are of the humiliation I received when I got back to the states and found that I was considered a "baby killer". Even more gut wrenching is that in the early 90's when my son was in college I realized that the the universities had been taken over by the Marxists. I think they were teaching him that I was a baby killer. My son is probably incapable of understanding the real story of Vietnam from an objective point of view. Most teaching of our kids about Vietnam is from the radical left's point of view.