Here's a concrete, albeit brutal example. In the world of classical Greece, you really had to be born a free male in a city in order to become a citizen. Hardly any ex-slaves ever became citizens, nor did immigrants from somewhere else. read more
” Yes, in many cases, for the reasons others have listed. Also, because the people who like to say it’s a strength want more diversity, and the ability to get what you want is a marker for strength. read more