The Good Thing about Living in 3D is the Ability to See Both Sides of a Coin

First of all, that passage was disturbing. Yes destruction can be its own creation; it is beautiful in a horrifying way. If any of you have seen I <3 huckabees, you know what I mean when I say, "Creation, destruction. Creation, destruction." The Fifth Element deals with the same issue (awesome sci-fi movie). It is the natural path of things, regeneration and degeneration, life and death. However, life is better. Life is a gift. Sometimes it may seem as if death is a gift, and it may be for some, regardless of the unknown afterlife. War does not go around asking people if it can kill them and humiliate them first. It may be beautiful in a horrifying way, but it sure isn't fair.
I don't think Triumph of the Will should be considered a documentary. Although it had the aim to showcase some of the events of the nationalist-socialist uprising and of the holocaust, it did not fairly represent everything that happened. It was a promotional film, one-sided and noticibly silent on the part of the Jews. Though there was live footage, we hardly ever heard Hitler speak. This film was mainly visual/inspirational rather than informational.
Although I would like to say Night and Fog is more of a documentary than Triumph of the Will, I can't necessarily say it is true. Night and Fog, like Triumph, shows visual facts and some live footage. However, it lacks the traditional informational format of a documentary. I can say both represent part of the history of the holocaust. Triumph is clearly slanted towards the Nationalist-Socialist ideology, while Night and Fog seems to give a dry pan of the horrors which took place in the camps. Therefore, it may be somewhat ok to say that Night is a fairer representation.