What you will find is that the averages differing is also hugely environmental but yes there is a genetic component.
I agree, there is both nurture and nature. You, however, think that nurture plays the biggest role while Dr. Pinker thinks nature does. My stance is that we don't have enough research to know one way or the other, and thus cannot make an accurate guess (and thus statistics on outcomes are almost entirely useless).
Do you not think it's likely, not just possible, that certain brains within ethnicities that emphasise intelligence less in upbringing had the capabilities to be Einstein and/or Tesla?
I have no idea. I do think that if there are races or ethnicities that have a genetic component for higher intelligence then, we would expect that 100 most intelligent people to be mostly comprised of individuals with these genes, with the possible very rare exception for people with genes that lead to the lower end of intelligence.
That isn't to say that the smartest people with genes for lower intelligence wouldn't be smarter than the averages of all people, humans are more the same than different. It is at the extremes where differences are made apparent (like with Olympic level sprinters).
What I mean is that you will find there are two fundamental ways humans evolved to be smart; either they evolved to estimate and calculate deep (hiding and hunting stealthy prey) or they evolved to calculate and estimate fast (open-plain environment). Blacks of Africa were in extremely open-plain scenarios where absolutely nothing mattered more than endurance, literally. How far you could run, how long you could chase down and then carry your prey's body back to your tribe, how long you could last in a straightforward fight, these are the things that mattered in Africa. The only element of intellect required here was speedy tactics, therefore what was naturally selected was entirely based around that. In Asia, you had to memorise which trees are likely to have predators lurking in them, which areas are fantastic to find prey, which sounds among other sounds to listen out for that would warn you of a stealthier predator and on top of this you had to have the very same expertise and ability in hand-to-hand combat as the Africans did (especially in East Asia which was prone to massively brutal clan-on-clan combat). So this environment naturally selected for people who could memorise well and calculate fast, regularly, not just strength.
So, you do agree that mental characteristics also differ across race or ethnicities and not just physical (height, sprinting speed, etc.)?
When you say 'smarter, therefore superior'
Never said that nor would I ever say that.
My only interest is in what characteristics have nature components and how much of an impact they have in outcomes. This is because so many try and use outcomes to determine if there is a systemic issue (or cultural issue) that leads to this inequity, but they assume that nature components do not play a role in these outcomes.
For example, we know that the more aggressive someone is the more likely they are to commit violent crimes, and thus more likely to end up in prison. Men are more aggressive than women, on average, but this means when you look at the top 1% of aggressive people in the world it will be mostly men. Thus, it is no surprise that men are placed in prison more often than women, this is expected on some level due to nature components.
A question that can be asked is if such nature components exist along other lines as well. Some studies link higher testosterone to higher aggression, and so groups with higher average testosterone may well be more aggressive on average and have higher representation in prison. Some studies suggest that Africans have higher average testosterone than other racial or ethnic categories. As such, there is a genuine question on if (assuming these studies are accurate for now) higher representation of Africans in prison in comparison to population levels in society is an expected outcome, if it is a sign of systemic racism, or some other component (or a mix of these).
Many on the left look at these statistics and say that it is proof of systemic racism as that is the only possible explanation, and they deny any nature component could be a factor as well.
There are many racists that try and use race realism to say that it is due entirely to nature.
I think there is a genuine question on how much could be due to nature, and thus, with that knowledge, have an easier time seeing how much of a role other factors are at play (whether cultural factors, systemic racism, etc.).
Maybe it is the case that there are no nature components, but the issue is that this type of information just isn't known. Funding of this type of research would almost certainly never happen in today's political climate. There are even academics that have gone on record saying that if such information was made aware to them that they would lie and say that such information doesn't exist in order to prevent racism from getting any level of justification.
My worry, and why I think race realism is important on some level, is because people are trying to change policy and law based on statistics with the assumption that race is entirely a social construct and that there are no nature components. If nature components are a factor in some of these statistics and we use legislation and policy to get as close to 'representation based on population' without factoring in these components, then we very well could be destroying equality of opportunity.