That's also something I see differently than most.
I see a common root to all manner of "social problems". Racism, racial supremacy, nationalism, exceptionalism; these are all the basic universal social more of loyalty gone awry - applied too fervently and/or inappropriately.
Loyalty, in it's most basic form, is universal; meaning it exists in all societies, in all people in one form or another - with the notable exception of psychopaths. (sorry for the lecture, folks). There is no loyalty more universal than that between mother and child. Which obviates the purpose of this loyalty - survival. Love supports loyalty. Which, in turn, promotes survival. But from there, we have loyalty (and loves) extended to ever larger groups of people; family, tribe, community, state, race, nation. At each level, we create an 'us V. them' mentality complete with different standards of treatment. This is perfectly natural for us humans to do. In fact, in terms of evolution, it makes sense to do so. The guy who is suspicious of all but his family may not make a lot of friends; but he is unlikely to be killed by a stranger. The guy who embraces all strangers may make a lot of friends, but may not survive long enough to pass his loving nature to his children. This is so natural, in fact, that we like to create sides to belong to in any situation - be it cafeteria cliques, the National Football League, or war between nations. And who doesn't like that feeling of belonging in a larger group (asides from psychopaths and schizoid personalities)?
But this also gives rise to many 'social problems'; racism, nationalism, apartheid, ethnic cleansing, genocide, segregation, and all manner of hatreds and violence; even war and slavery in many cases. For example, a person who feels his nation is superior to all others purely because it's the one he was born into. It makes no sense because that same person should logically expect everyone else on the planet to feel the same way about the nation they were born into. And certainly, not every nation on Earth can be superior to all the others. Patriotism - loyalty to one's nation/state is perfectly natural. But nationalism - the idea that ones own nation is better than all the rest - is nonsense. It all a matter of what metric one uses. And there's no question that exceptionalism - the idea that one's nation should be allowed to do things no other nation should be allowed to do - is obviously immoral (it breaks another universal social more; that of fairness).
In the past, I've made arguments to people who do not believe morality should be used at all on the national level. That the foreign policy of nation/states should not have to be moral. That any lack of morality demonstrated by any government is no reflection on the morality of its people. I consider this nonsense as well since, through patriotism, nationalism, and exceptionalism, the people governed has already impressed their morality upon their government. Even the dictatorship reflects the morality of the dictator.
Tl;Dr: Many of our worst social traits are actually our morality gone horribly wrong. We extend our loyalty inappropriately and enforce it too fervently.