/lit/ - Literature

I'm looking for books that explain why is West, all of a sudden, so obsessed with the notions of "equality" and "diversity"; why sexual and race minorities suddenly matter? Why communism is suddenly cool again? And so on. Why is it suddenly okay to silence out anyone who dares to have a different opinion on anything? And why are all of the biggest corporations in the world like Facebook, Google, Twitter, etc. seemingly so in love of all those ideas?