Lol how many blacks do you think could do that?
In terms of ethnic Black-Americans descending from Southern black slaves in the antebellum South, that would not be too difficult. Consider the surname. A person's surname (last name) as my former Africology professor pointed out, is a person's
real name. In the sense that others judge or respect you and you familial lineage from that name. Kind of like the Kennedy's in the United States.
Or I'm half black and half white. My white side is German-American and they came over during the mid 1800s to the USA. Settling in the North, so far as I know in the Midwest like Wisconsin and Minnesota, they were not a part of the Southern antebellum culture or its culinary culture. And like the vast majority of German-Americans during the 1800s, they were abolitionists (though likely racist) and some of them fought for the Union as Wisconsin troops during the Civil War. But part of my German-American family coming originally from Trier, Germany, and ancient Roman settlement, had on my grandfathers side (my mother's maiden name) a
ancient Roman surname.
The Germanic tribes often ended up as slaves of wealth ancient Romans. So, that might explain my mothers maiden name. Or... the people of the Germanic tribes having taken over ancient Rome may have become feudal aristocrats. Maybe that explains the surname.
But when you get to my surname, which my mother took from my Black-American father (traditionally women took the names of their husbands--a power issue), my surname, our surname, is either Welsh or Scots-Irish.
The Welsh and Scots-Irish both fall under the umbrella term, in the United States, of "Anglo-Saxons."
"Scots-Irish" are essentially people of Scottish descent who along with the Angl-Saxon of England, came from Scotland and colonized Northern Ireland. Treating the indigenous Irish (Catholic) population of Northern Ireland as serfs.
The Scots-Irish came to the USA largely as middle-class people (just like the Western European Jews much later, in contrast to their Eastern European Jewish arrivals who came to the USA poor, became prize fighters, bootleggers, and gangsters beside the Italian/Sicilians--and Jewish-Americans from Western Europe despised Eastern European Jews).
The Scots-Irish were mainly Protestants and often times college educated. They despised the Irish (almost always Catholic) that came to the USA uneducated, poor, dressed in tattered clothing. And the Scots-Irish certainly had a presence in the U.S. South, owning quite a number of Southern slave plantations. The KKK in fact draws upon Celtic themes/symbols, from their Scots-Irish background, in promoting their White Pride.
In fact, in Northern Ireland
to this very day, some of the people of the Protestant (Scots-Irish essentially, but they're called "Irish") Orange, will spray paint Swastikas and White Pride symbols in Catholic Irish neighborhoods. If I remember correctly they even have a chapter of the KKK in Protestant Northern Ireland (But I might be remembering incorrectly about that).
When the Irish came to the United States they had a hard time. None of the Anglo-Saxon considered them white. Even people like the Kennedy's were foreign to the old aristocratic wealth of the Anglo-Saxon elite in the Northern Eastern Coast states. You found the same thing with other so-called "ethnic whites" like the Germans, Poles, Sicilians and so on. They were not "white" to the Anglo-Saxon. Except maybe the Germans but they didn't originally embrace the Germans even though Anglo-Saxons were part of the original Germanic tribes.
Long story short is that all of these "ethnic whites" in the United States eventually became "white," allowed entrance into mainstream "white" culture of the USA. This happened by the 1970s to 1980s for both the Italian/Sicilians and Irish.
Black-Americans were never allowed that. To some degree it's happening now among the younger Black-American generations raised in predominately white American neighborhoods. These young blacks sound "white" when they talk and many of their white peers accept them among them as equals, as friends.
But decades, or was it a century or close to a century? of Jim Crow segregation isolated Black-Americans physically in communities, housing patterns.
Jim Crow is as important as the slavery that ended in the 1800s.
The Irish experience in Ireland, in Northern Ireland, has some similarities to the Black-American experience. However, the Irish experience within the United States is not really historically comparable to the Black-American experience due to the
racial caste system that was put in place throughout all the Americas.
India is not the only nation to have had a caste system. The United States (like Latin American nations too) had a
racial caste system.
Due to that caste system you really don't see any white "ghettos" in urban metropolitan areas today. They exist in rural areas of the U.S. though, as in the Ozarks and throughout Appalachia.
In metropolitan urban areas poor whites tend to live in predominately Latino or black neighborhoods. Because poor white neighborhoods are virtually non-existent in modern city USA. And white people raised in these areas can still count on their white phenotype to help them gain access to the jobs and money sectors black males have an extremely hard time accessing.
Or let me put it this way... my brother (mulatto) married to a white woman. Originally, my brother had a job history, and a college degree, whereas originally his wife had no job history (from being on welfare--her previous child had a white father) and I think only a GED. He was almost broken by the fact, when applying for jobs, he was getting no call backs for interviews, but his wife was getting a slew of calls for interviews.
Today she's close to getting her bachelor degree and has a long job record. My brother has two master degrees now and works for the public schools as a teacher. But the point is race matters in a racial caste system. Zip code can work to indicate a persons race in the United States too.