Mrrzy, for a lot of people of African descent, "Black" is much more than a skin color.

While the dominant skin color for persons who live in sub-Saharan nations imay not be as varied as that of African Americans {people of African descent from the USA who are identified as Black},but I've seen enough sub-Saharan Africans to know that all of them do not have very dark. There may be other reasons for this, but certainly there's been interracial mating between Black Africans and Europeans during the centuries of contact between these two populations.

With regard to the educational system, not mentioning "White" doesn't mean that kids don't get that they are learning "White stuff" when they learn about the history and cultures of selected European nations; when they see only European music classified as "classical", and when White authors and poets are the focus of much of their English literature curriculum, and when the history of the USA is taught from the vantage point of White folks. In that sense, every month is White history month.

This matters because-as you put it "What I object to is if you're white, you're normal, but if not, then you belong to some SUB-category - not just another category".

And you also answered your question about why there is a Black mayors' association- " Not that the whites need anything special for them"...

With regards to schools, given the fact that personal & institutional racism and prejudice are still virulent in this nation {and other nations}, groups & individuals that are targeted must work out ways that help children and youth develop and reinforce both group esteem and self esteem. Group esteem is actually an important part of self-esteem which may be taken for granted by White people who live in a predominately White nations. For instance, when White school students learn about European emperors and European kings and European queens, they receive positive group affirmation. African Americans {and other people of color} much less frequently receive the same kind of group affirmation in schools, and in the mass media. In the USA, Black history month {which used to be Black History week} was created to address this gap. But it is far from enough and it's "the first Black person to achieve something" approach is far from acceptable for many Black and non-Black parents and educators who are interested in quality multi-cultural curriculums for children/youth.

Again, I applaud you Mrrzy for your belief that a person's race shouldn't matter. Unfortunately, race DOES matter in the USA and elsewhere. Indeed, in some circumstances a belief that your race and other people's races do not matter can lead to injury or death.