"a group of black MBA candidates threatened to drop his class rather than 'endure the emotional exhaustion of carrying on with an instructor that disregards cultural diversity and sensitivities'"

Seriously? This prof mentioned that it was a Chinese phrase before saying it. The students knew the context. And what emotional exhaustion are they enduring to a phrase spoken for a few seconds that isn't even the n-word?

People just love being outraged. It's like they are power-hungry or something. They like to dominate by playing the 'im offended' card.