only the slavs who spontaneously made armies that fought the communists in ww2 were genuine.

I also read on a low quality wiki article NLF and PAVN strategy, organization and structure, another thing that sounds like it was intended to delegitimize them, but also sounds somewhat logical to what I know of the communists and would be justified if real.

The Communist command structure was complex,[100] with a series of interlocking committees and directorates, all controlled by the Central Committee of Hanoi's Lao Dong (Communist) Party. This same pattern of interlocking groups was repeated further down the chain to the lowliest hamlet- all controlled by party operatives.

This elaborate structure often appears ponderous to Western eyes, but it was extremely well adapted to the demands of the war effort, and its built in overlapping, duplication and redundancy made it resilient and able to adjust to defections, captures or deaths among its members. While the North Vietnamese and their allies made elaborate attempts to camouflage the organizational arrangements that drove the war, it is important to note that both the armed Viet Cong (properly the PLAF), and the regular troops of the PAVN were ultimately one joint force. Each had its distinct local characteristics, recruitment paths, resource bases, and missions, but collectively they were controlled as one by Hanoi, and are treated as such in official communist histories of the war.[101]