Are all races truly equal?

Traits of physical ineptitude and mental acumen are signs of more evolved and complex species.
Take the neanderthals. Their mental capacities were much more limited than ours, yet their physical prowess is one to be envied by many men today.

I find it incredulous that homo-homo sapiens have fully evolved, given the clause found in today's belief system, and then decided to move away from Africa. If this was the case, we would all be black, thus making the whole argument fallible.

The more appropriate reasoning would be that many different humanoid species dispersed throughout the world and evolved accordingly to the environment.
The blacks stayed in their own continent, which hindered them from evolving any further. This is why they are the strongest race, yet they are incapable of advancing any further than the common mud hut, something even a beaver can amount to.

If you want to argue against my position, then please provide your proof.
P.S. A Zionist source does not count.