I don't know how it is for you down under, but here in burgerland the North Vietnamese "Vietcong" have, for as long as I've been alive to remember, been portrayed as sadistic beasts who would capture our God fearing corn fed warfighters, torture them, and keep them in captivity for decades after the war ended. It's very common to see MIA/POW flags here.
At most, it's considered a war that was pointless and wasted thousands of American lives; next to no one cares about the many more Vietnamese lives that were lost (to say nothing about those who were bombed in surrounding countries).