Said another way, I think that a white, a black, and an Asian raised in the valley probably have a much less diverse cultural background than say, three whites from SF, Mississippi, and NYC.
But in that instance people would just complain it is too white and needs 'culture.'
I'm OK with the culture argument, as long as you don't just throw it behind racial lines, which does a huge disservice to everyone and makes a lot of not so nice assumptions.
There are already a multitude of cultures and peoples that contribute to Linux, it’s a worldwide phenomenon, not some US centric thing, and shouldn’t be subject to the social justice fad du jour.
The problem isn't objective reality, test scores, etc. The problem is that racism (and many other evils) persist in people's hearts. Only love and truth can overcome that problem.
I for one hold to the objective truth that "all men (and women) are created equal". Go put that in your pipe and smoke it.
Math is math. A car is a car... there's nothing racial or sexist about a car, unless it fails to come with an adjustable seat.
The easiest visual instance of this can be photographic filters - Google's Pixel 6 emphasized better photos for people of Color, where other sensors/phones may not be correctly calibrated for PoC. This is a pretty minor instance but easily visualized.
AI that does facial recognition or facial identification has in the past had issues with the faces of non-white people. It isn't a result of a 'racist' programmer. It's just from the fact that most testing and the data sets of these softwares is lacking the necessary diversity. It is part of including more people in software engineering is to combat these issues.