You shouldn't segregate events by race.
Sean has to organize a convention, and he's trying to figure out how to group people together.
Sean wants to make everyone happy.
Sean puts everyone into random groups by picking names out of a hat.
Sean decides to separate everyone by race, because he thinks they'll all get along.
Everyone at the convention understands why they were grouped in this way and are okay with it.
The people at the convention are offended when they find out they were segregated.