Thats true the prophet was from an arabised tribe but thats the most common consensus cause the best of mankind came from them. Also ishamel couldn’t have been a jew because jews descend from his brother issac and abraham wasn’t a jew he was from iraq. So in a sense both arabs (the arabised ones) and jews are iraqi.Lineage? The prophet muhammed pbuh was himself an "arabized arab" due to being descended from ishameal as. Technically ishameal was himself of jewish origin i believe