An unhealthy obsession against diversity (most notably racial and sexual) seen by consumers of media products like movies and video games. An individual with DDS would go on an unhinged rant about how something is ruined because it either features diversity such as including a POC individual or said product would attempt to be inclusive to a diverse audience.
"Did you see that annoying clickbait video about how Gaming is ruined by DEI and wokeness"
"That guy talks about diversity in every video."
"He must be suffering from Diversity Derangement Syndrome."