And several of the items—"Love Poems of Hue"—aren't overly propagandistic. So really, you're just dehumanizing an entire people, which is disgusting.
Also, this collection spans much more time than communist Vietnam? 1900-2020s? Weird take.
Propaganda posters, of course, lean into propagandistic tropes as a language. For propaganda posters they are pretty creative and well drawn. Better than a dozen pictures of Uncle Sam rolling up his sleeves.
Put up or shut up.
Most art, anywhere, always, had to comply with some power. I don't believe it's very different today in the west, although it manifests diferently.
The most stringent exemple of this may be rennaissance painters who've spent a great part of their talent painting portraits for aristocrats. Yet, even in that case of very narrow use case and vital necessity to please the power, the art can be creative, can't it? Once you manage to set aside that violent scrumbag looking down at you.