I've been thinking about this a lot over the past week.

Why is it that only Western (specifically anglo) media ever discusses topics like dehumanization or multiple personalities?

The trope started with Jekyll and Hyde I think. First published in 1886. JRR Tolkien expanded on it with Gollum and Smeagol. Star wars has darth vader. Game of thrones has reek.

This trope *never* shows up outside of anglo media. it's strange. it's also a big part of what gives western media the depth that it has over other country's forms of media, it's more psychological and personal