“Most experts believe that our ancestors emerged in Africa more than 150,000 years ago and then migrated around the world.”
It’s wonderful not to be an expert. There is no proof that man originated in Africa.
The Gobi desert is vast and inhospitable. Therefore, it is not researched.
Antartica is vast and inhospitable. Therefore, it is not researched.
Pseudo-scientists go where the going is easy and their theories are based on their easy going.
But DNA goes wherever man goes. Here is one theory of how it happened: Journey of Mankind.