In my opinion, even if the big countries decide to leave Africa, I think some rich African countries such as south Africa and Nigeria will be difficult to convince them in such agreement without giving them extra benefits because they will share their resources with the rest that are mainly poor developing countries. That's why Britain decided to leave EU recently. Anyway, I hope African people will find a good chance to show their capabilities to the whole world and give And make a prosperous life for all Africans nations.