I think this is the completely wrong part, in that it assumes that any living individual ever considers everything about their civilization to be Good and Right. By and large, even the ruling classes don't get everything they want (for example, they wanted a Hayekian utopia along Peter Thiel's lines, but what they got was the messiness of actually existing neoliberalism).

I'm not talking about practice, but rather about ideals, value systems, that sort of thing. Tumblrites haven't gotten what they want either -- but they still want what they want, and what they want is determined by something, and whatever that something is, it varies.