>>125473695American-born Blacks are almost entirely Bantu with some British and Scots-Irish blood mixed in (10% to 20% Anglo admixture, on average), with no connection to actual African culture whatsoever. Many are poor or at least on the lower side of middle class, and most live in urban ghettos that are overcrowded, underfunded, and generally miserable, alongside very poor illegal immigrant groups (mostly Mexicans, Hondurans, etc. who often don't even speak the same language). Many of them don't have complete families and were raised by single mothers or other relatives (grandparents, aunts/uncles) due to absentee fathers. Their main cultural and community leaders tend to be corrupt politicians who only care about money and power, and those politicians often play up racial resentment to keep their poor urban Black voters loyal, and to prevent them from making alliances with poor rural Whites (who also have generally miserable lives) against the plutocrat class. They're indoctrinated by the Amerimutt education system that teaches all sorts of nonsense to children at a young age, which is then worsened by Amerimutt media. Then, in addition to the general awfulness of American culture, African-American subculture in particular tends to emphasize sex, drugs, violent crime, and reckless thrill-seeking hedonism in general.
For what it's worth, Nigerian immigrant families who live in America are much more successful on average. They're usually middle class, sometimes even upper middle class, and tend to live in suburbs with the non-poor Whites and other successful immigrant groups (Persians, Indians, Chinese, some South American Latinos) rather than with American-born Blacks and Central American illegal immigrants in the ghettos. Their experience is very different from the average Black experience in this country.