While I certainly don't disagree with most of your points, I would take issue with this point.
There are many factors that shape genetics. One of those is natural selection, which is a significant contributor.
Take the Ashkenazi Jews (just one example), who have been a persecuted ethnic group for much of history as we know it. They were challenged for the survival of their group early on in history (and continue to be challenged by the world), they became the so-called bookkeepers for merchants using Roman numerals to do their math (later to become merchants on their own), etc. So, through environmental factors and natural selection, they became more intelligent (a genetic trait). Yes. Environmental conditions such as their society, culture, cohesion, and focus on education are significant contributors, but genetics play a major role.
By the way, I am not Jewish but a lowly Anglo. But I so admire some of their traits/success.
You have me surrounded. First, you say effort doesn’t matter, only IQ. Now you say taking effort into account isn’t enough. I surrender. You win.