My theory on the 3 main races.
Here is my theory. (Not original. Other people have proposed this. I just agree)
Humans did a migration. From where not so important.
White people and Asian people left Africa as one race.
Then white people went west. Asians went east.
White people mixed with Neanderthals. To create modern day Caucasians.
Asians mixed with Denisovans. To create modern day Asians. Maybe Asians did both Neanderthals and Denisovans. What ever, Asians are part Denisovans.
People still in Africa mixed with an unknown species of humanoids.
Thus the 3 main races were created.
Indians are clearly a mix of the 3. I guess they would be closer to Caucasians than Asians. Same for arabs.
Native Americans closer to Asians.
Native Australians closer to Africans.
