That is what I was thinking myself as I read the article. But if I remeber correctly they are all cousins somehow!!
Barack’s mother was definitely an American woman, no matter what his father’s blood relationship to his legal wife was. (Unnngh.)
This reminds me of the articles that use “stepfather” for “the man currently screwing a kid’s mother” and “stepchild” for “the kid the man screwing the mother beat up/murdered.”