No everyone from Eastern Cape is Xhosa, the only Xhosa clans are Rharhabe and Gcaleka.
The rest of the clans speak Xhosa Language but are not Xhosa, like Tembus(Mandela clan), Mfengu(Mbeki's clan), Mpondos(Tambo), Gambushe, Mpondomise, Hlubi, Gqunkhwebe, Bomvana, Xesibe.
So i would like to know about Zulu tribes or is it one big tribe.Wheres Brick?