This isn't the only thing wrong in your post, it's just the one I chose to respond to. I don't want to spend a lot of time on this but here is another myth which I debunked on this forum a few months ago.
The Capitalist side, most of whom were Vietnamese, and which also included Australians, probably British special forces recorded as Australian, Khmers/Cambodians, Koreans, Laotians, New Zealanders, Philippinos, Taiwanese and Thais, as well as Americans, weren't just fighting the guerrillas.
You did mention the NVA (aka PAVN), but credit the guerrilla warfare with defeating the Capitalists. The US + allies were facing large amounts of conventional forces, plus the threat of the Chinese/Soviet conventional forces if they went into North Vietnam. It was conventional forces that won the war (against the French earlier as well).
I grabbed a quick quote:
Three years later, however, PAVN forces had recovered from their earlier offensive, and now stood strong with 685,000 troops. Armed with tanks and artillery marched successfully on the South, ending the Vietnam War.
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Meme: