Homo sapiens came into being in one place, in Africa, not in many places all over the world at one time

Go back to the beginning to understand how this works

They spread somewhat though Africa, first, obviously

At some stage they started and kept on leaving Africa - that they quarelled and killed eacother, well that's to be expected

These populations all , subsequently, developed in different ways in different places, only in some isiolated corrners did they retain marked traces of their origins

They looking different does not exclude a common origin, au contraire

But yes, they you me everyone all came from that one place around the Rift or somewhat near there somewhere in Africa