The outrage might be over the top for a single email, but that is not the context experienced by the students protesting. As a white guy with a good job, the Atlantic author and I share the privilege to experience race if and when we choose. From that perspective, it's easy to call this "a fight over Halloween costumes"
For the women who say they were turned away from a "white girls only" party, and for many others, it's not a fight over an email about Halloween costumes. It's about having administrators who acknowledge the reality that they experience on an ongoing basis:
It's worth reading another side of the story before jumping to conclusions: https://medium.com/keep-learning-keep-growing/what-s-really-...
When you see all the context that the Atlantic author, Mr Friedersdorf, chooses to ignore, you should think about the political agenda behind a piece like this.