Or, perhaps, much less magical non-genetic factors like more likely being brought up with less access to higher-quality education, nutrition, stability, and safety.
Here’s an article from the institution whose graph you reference about why this gap exists - https://www.brookings.edu/articles/unequal-opportunity-race-... - which explains that many of the differences in education available. Black children are more likely to go to schools that have less funding, offer fewer advanced classes, have more students in them, and have lower-qualified teachers. And experiments that involved children going to better schools showed they had better outcomes.
So, yeah, let’s control for things we actually know affects these outcomes first before jumping to genetic factors.
