On the census and the American Community Survey you are allowed to identity your race as black and your identify yourself as a latino. And the census doesn't actually does say black=African American. It says black or African American. It acknowledges that there are other ethnic groups that make up the black race other than African Americans. This is also done for better identification purposes. Same way the new races are for better identification purposes. Tons of researchers rely on census data, so you need accurate identification. Dude uses the census as the gospel in one case then ignores it in the other.