While the NFL was nominally a coalition of bourgeois-style parliamentary parties, and most people know that one of its actualities was that the VWP synchronised a majority of these "parties," the NFL was fundamentally dependent upon local non-VWP leadership. Think of the woman whose husband was murdered in 1958 under the 1956 laws over, let's make her hate the RVN, the salt tax. She is not going to want to back down. She was the kind of woman forcing the Southern VWP to take an independent line in 1959 on restarting the war.
I'm not familiar with all the abbreviations, but your point is well taken. Once a war starts, often it's very difficult to bring it to a stopping point.
And I think the communists and Ho Chi Minh did engage in a purge of 'class enemies' in the North in '56(?). This is something they should be held to account for, and I say this as someone who is very open-minded to ideas of socialism, anarchism, participatory democracy, etc.
On the positive sides, wars do get brought to a close. Maybe if more of these examples were taught in school, the average citizen would have a broader set of skills. So, the question is how to respect family members of those lost while still bringing the war to a close? And not by preaching, I suspect. In many cases, the less said the better. My own Uncle's funeral, who served honorably stateside and lived a long life, one of the young soldiers at his military funeral simply stated, 'We will now pay military honors. Be advised, there will be rifle fire.' That is, they kept it short and sweet. I think the young man did a fine job. There had also been deer running across the large cemetery when we first arrived. That's another memory I will keep.