What, however, can the man of good will do to combat this deeply rooted prejudice? More diversity (in neighborhoods, in workplaces, in schools) would certainly help -- the transition from "us" and "them" to a unified "us." And yet, it's disappointing how segregated America still is today. One fairly in-depth study [1] offers an example of how "today" came to be. (This report is not about any current events, but rathe…
if you haven't seen this, there's even some math to explain how "today" came to be. http://ncase.me/polygons/
You could also write a model where people have different innate preferences over the lifestyle they want to lead, and so self-sorting is an unambiguously good thing.
I understand that everyone wants "math" to be on their side, but it's not really mathematics that is doing the work here, it's your assumptions.