Why will it be so difficult to bring african countries together

Xenophobia is a disease ailing those African countries who think their economies are better than others. When Biafra and the other ethnic groups can't live together as one. Unfortunately today tribalism and politics go hard in hand. Nations come with a vast array of peoples, languages and histories, but the strong. Outside of the media spotlight, South Sudan and the Central African, different tongues, which should make nation-building more difficult.