Everyone has roots back to Africa. If the uncovering of the origin of humanity is in Africa then that brings us all back to this population.
Humanity spread and interbred over thousands of years and in doing so inherited different features. It is no secret that even the Neanderthal amongst other species interbred with modern human.
We are a cocktail of species with the dominant being modern human. It is therefore without contest that everyone shares a common heritage.
We have evolved over thousands of years and although we have spread out about the planet we are still part of the tree of humanity.
Our roots and our extra combinations make us unique as a species but even so we must realize we are not alone on this planet and share this space with other species.
Our origin took roots in Africa.