The polarized responses to this are fascinating
Personally I found this doc mildly interesting but often a bit tedious. Typical reactions though are much stronger. Cultural critics generally either find it deeply inspiring or absolutely appalling and horrifying.
I don't really feel either way about it, which makes it even more interesting to me that it provokes these reactions. And it's not like the differences are between people who are otherwise radically different in their politics, so I'm not sure what it is about it.