Earlier quoted context omitted.
Maybe their soceity would have been more successful if it wasn't bombed to hell and back by the Americans then made a soft client state of the USSR and then boycotted by the West. If left to develop its communist government by itself, it could be like China today - a superpower that's going to overtake the USA by important measures. Lets stop pretending that years of war against a superpower didn't come at a cost for…
Are the Vietnamese people winning in this scenario? Are the Vietnamese people winning right now?
Would they have been better off if france agreed to decolonize instead of trying to hold on to their failing colonial empire with force (leading to everything that came to follow)? Maybe we'll never know.
But i don't think there's any particular reason to assume that if the south won they would be any better off. South Vietnam hardly seems like it was the most stable/well run of governments - they were into fixing elections and persacuting buddhists, etc. Hardly what i would call an ideal state.