Alright, here's a few:
1) If we isolate ourselves ethnically, we're only going to become even more mistrusting and violent toward other ethnicities. Just think of how much racial tolerance has grown between whites and blacks in the U.S. in the past few decades - and how much less racial violence there is now compared to the old Jim Crow days. Would that have happened if segregation were still in practice? I think not.
2) The idea that we should isolate ourselves from those we are less agreeable with has some pretty outlandish implications. It seems you could justify separation from overweight people, or gay people, or quiet/unsocial people, just as easily if you find those kinds of people unattractive or untrustworthy. Just because we judge certain people based on their appearance or behavior doesn't mean we have to avoid those people at all costs.
3) To many people, like myself, who have good friends among people of other ethnicities, it seems pointless and plainly stupid to be forcing unnecessary divisions between these people when there aren't any in the first place. There are numerous people not of my ethnicity whom I trust very much. If someone were to tell me that I'm just kidding myself over my feelings toward them, I would just laugh at them for making such a presumptuous claim about something they know so little about.
I think those are enough objective, tangible advantages for now. All replies/rebuttals welcome.
With all due respect you have not shown any discernable advantages to a multi-racial/ethnic society in and of itself. Your entire position presupposes that the society in question is already 'mixed' to some degree, and thus it is necessary to approach this in a way to facilitate, defend or further promote that fact. There would be no need to praise the supposed "tolerance" between, for instance Black and White, if separation were in place. You are really arguing why you feel a multicultural/racial/ethnic society is desirable(after the fact, if you will) but not why, if we were starting from scrath, such an arrangement would be preferable to a homogeneous society(whatever the primary ethnic groups may be)in the first place.(that is, objectively speaking, what I was after)
I believe you may have to re-assess your assertion that racial tolerance has magically reduced inter-racial violence in the US. You seem to be neglecting the violence Blacks perpetrate on Whites. Of the roughly 1.5-1.7 million violent interracial crimes reported annually in the US, Blacks commit 90% of this violence.(source US Dept.of Justice - National Crime Victimization Survey) In the US in 2005 some 37,000 White females were raped by Black offenders - The number of Black females raped by White offenders was 0. Surely such a shocking disparity betrays fantasies about drastically reduced violence and so-called "tolerance."
Moreover, one must consider the staggering machinery required to orchestrate this alleged tolerance. The US Government, schools, businesses, etc. collectively employ tens of thousands of "Diversity" peddlers. Orwellian "hate crimes" legislation criminalize thought. The mass-media and greater entertainment establishment all religiously parrot the same gushing glorification of Diversity, condemning all dissent as moral wickedness, blind-ignorance and of course, everyone's favorite catch-all "hate." Yet today, we are supposed to pretend this is all some organic utopian progression - all natural and in no way coerced! Would all, nay, any of this "tolerance" have occurred naturally? Indeed, without the incessant meddling of social engineers and government officials, would there even be a need?
It is a curious social "advantage" that requires an army of solicitors, propagandists, high-priests and lobbyists to sell it. Still more curious is it that just a few decades ago few if any civilized people either longed for or even considered that their lives were somehow incomplete without the glories of Diversity to make them whole.
In a perfect world, I would not disagree with what you have collectively stated. Of course reasonable people can have friends or what have you from any race or ethnicity. But on the larger scale this arrangement begins to quickly break down. And all this wishfull thinking, moralizing and feel-good rhetoric aren't going to change this. That is why some see separation as a better way - not to harm or debase anyone, but to avoid just that.
