Racism (from a moral standpoint)

[A-Man]

You can come to the same conclusion upon experience. Sure things can look complicated when you get into the details but stepping back from your work and seeing the bigger picture of this whole system really simplifies stuff to a digestible manner.

It's not really stepping back. It's fixing a huge number of variables and letting only a small number vary. That simply gets you the wrong picture.

Yes, it matters. There are people whose skin color is so light that they get easily burned from sun exposure and can't even get tanned. Skin color also affects the synthesis of vitamin D, people with darker skin require more sun exposure or else they will lack vitamin D. This changes the types of work and environment people are qualified for, dark skin is good for working outdoors in a hot environment, light skin is good for working indoors or in a cold environment.

For a similar reason, I would likely prefer the 10 cm taller person for my basketball team (although some might even argue there are shorter players who can play better). Is that racism? I don't know. I hope it's not.

Still for your example, I still doubt it matters that much in practice. These conditions are just too specific, and the lack of the benefits of black skin can be easily compensated with equipment.