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…
I believe a greater benefit would occur were we to have more mixed race couples, and with it the offspring that would tend to be produced by those relationships.
I think the main problem is that most people lack a true passion for anything. Even many people of the same race don't get along well because they have no real interest in anything. If they don't even share the same race (i.e. have even more different properties), shit is about to get real.
Based on that theory I would guess that you see less racism amongst hackers, musicians, athletes etc.
Humans may have made great progress technologically. But having neat digital watches didn't help society as a whole to grow intellectually to the same extend.