@WeDontTalkAboutBrunoNoNoNo
Of FFS. Talk about wanting to find fault with everything.
Nobody is trying to find the fault in "everything".
The statement of black skin being unusual is harmful, especially to a child on the receiving end of it.
Teaching children to simply ignore colour is not the same as teaching children to understand and embrace difference.
If you live in a place where people with dark skin are, say, 5% of the population, it is unusual.
You don't have to teach kids this, they know it because they are not blind or morons.
All that will happen if you try and pretend it isn't so is cause a cognitive dissonance. Something they know, but it's allowed to be said. That never has good results.
What you can do is try to cultivate, to some extent, an environment where that's just seen as another standard human difference, just like having red hair and freckled skin or olive skin and dark hair, and possibly different ethnic background, each with their own history, that relate to them. It's not always easy to make that happen in a perfect way, but it's an ideal. Much as if you go to a country like Canada no one will take any real notice if your ancestors happened to be French, English, or Irish, though 100 years ago it would have been.
But if you think that you can prevent children from noticing that some people look different, you are very much mistaken, it's even less likely than with adults who have some capacity to self-censor their thoughts.