Africa is a continent, not a nation-state. Are you comparing Africa with the Ottoman empire?

I wonder where is the limit between leader and dictator. Hitler was a leader for a lot of German people too, I am not saying it is the same, just saying that you're maybe coming from a nation-state perspective, not a sovereign perspective. Saying states are sovereign is like saying elephants can flight. Sounds to me, Atatürk was claiming independence, not sovereignty, for Turkey.

Sovereignty belong to individuals, not to communities or nations.