Excuse me, what's the difference between black American blood and black African blood?

The American government calls blacks African-Americans! You can't just call it black! ! That's racial discrimination! ! ! From the source of black Americans, it is the population plundered from Africa in the slave trade! Mainly engaged in plantation labor in the southern United States, after the end of the American Civil War, the abolition order issued by President Lincoln began to be implemented, and the black Americans were nominally free! Living together for a long time has produced a new race-African-American, which can be called "chocolate". Its skin color is not as black as that of African aborigines, and it is mostly black and white or black Hispanic. For example, former US President Barack Obama is an African-American from Kenya.