Most consider him black because of his skin color but his mother was white. Even Martin Luther King, famous for his activism for black rights… partially Irish.
Not to dismiss DNA entirely but the point here is there are no pure races. We all mixed to various degrees. The endurance of identity is not through DNA but through culture. And in that regard Jews have Palestinians thoroughly beat. When Helen drones on and on with her fake DNA claims she sounds like Nazi. She depends on DNA because Palestinian ethnic identity has no history prior to the 20th century.