On the "Overthinking It" blog from February 2011, a sharp analysis of the socioeconomics of My Little Pony: Friendship is Magic.
"The most fantastic element of the show is not that ponies can talk or that dragons exist; it is the illusion that an egalitarian society can be maintained among groups with massive biologically inherent gaps in ability and economic utility. By even the most cursory of sociological and economic analyses, the society in MLP: FiM
should be highly stratified along class and racial lines. [...] There is ample evidence Equestria is already highly stratified, and the mantra of 'friendship is magic' is nothing more than a mythic-religious creed designed to perpetuate false consciousness among the ponies. For confirmation, look at the professions of the main cast. The two earth-ponies work in agriculture and the service industry. Of the pegasi, Fluttershy can be classified as a naturalist and Rainbow Dash aspires to be a pro athlete. In contrast, the two unicorns work in the professions that have the most cultural and political cachet. [...]
"As for Twilight Sparkle -- the protégé of the ruling monarch Princess Celestia -- she seems to control the means of knowledge production in Ponyville. She has access to unfettered telecommunications through Spike, her dragon companion. She also lives in the town library; how many books in that library were written by unicorns as opposed to the other pony races? (Not to mention the voices of griffons and dragons and cows, which are most likely also marginalized in the Equestrian narrative?) Whenever a non-magical pony tries to write, the image is comical at best; they must hold their implements awkwardly in their mouths. Unicorns, on the other hand, can easily manipulate and create texts using magical power. Twilight Sparkle drafts documents simply through the power of her mind. With this inherent publishing bias in Equestria, how slanted is the historical narrative towards the unicorns?"
Note also the thoughtful and respectful comments section. "'Friendship' is essentially capital; the bourgoisie Unicorns control and exploit that capital for their own benefit (and in fairness, generally to the benefit of pony society), and the system itself ensures they are the only ones who can do this; but it is essentially the proletarian earth ponies that provide the means of production." (Overthinking It, Feb 2011):https://www.overthinkingit.com/2011/02/24/my-little-pony-political-economy/