Humans like to be among their own kind, Fred Reed has noticed:
This can mean many things. It can be political. In Washington, white liberals cheerlead for diversity while spending their time exclusively with white liberals and execrating Southerners, Jesus Creepers, genocidal conservatives (understood to mean all conservatives), Catholics, racists, owners of guns, rednecks, and so on. No dissenting voices are heard because, like conservatives, liberals choose to be among their own. Similarly, if in any of Washington’s dives you know that one person in a table of six has an IQ in excess 130, it is a good bet that all do. It isn’t snobbery. Smart people enjoy the company of smart people. Their own kind. So what?
If left alone, people will naturally and peacefully form such associations as seem to them desirable. If left alone. So what?
The Chinese cluster together in China Towns because they want to be among their own. So what? Jews have yeshivas because they want to preserve their culture. So what? On campus, black students want separate fraternities and dormitories. So what? When men can find a pretext for being among other men, they do. So what?
In all of this, I am a bit of an outlier, having lived among many cultures and generally liked them. Some can do this. Yet as a white American of European extraction, I too want to preserve my culture. This involves (or did) respect for law, studiousness, the production of children within marriage, self-reliance, honesty, sexual restraint, and so on. Another part of my cultural package is the literature of Milne, Milton, Twain, Galsworthy, Gibbon, and others at length. I want my children to read them
However, I do not want to impose my values and culture on others. American blacks for example are truly African Americans, and quite reasonably may have as little interest in European history as I do in African. Rationally this would argue for separate schools where each could study what and as it chose. For reasons impenetrable to me, to suggest this is thought worse than genocide.
A reason for letting people associate as they choose is that, while groups naturally do not like each other, they overlap in curious ways. Left to themselves, people sort these matters out like water reaching its level.