Maka wrote:
Are we saying that only blacks are having this condition?
If that's the case, why has science not picked this up years ago?
If the condition does exist in all races, how many other athletes were recorded to have the condition?
I don't know what you mean by "this condition." But if you mean disorders/differences of sex development or DSDs - the umbrella term for approximately 40 different medical conditions - no of course "we" are not saying that only black people have them. Or at least I'm not. Nor have I heard anyone else say this. DSDs can - & do - affect people of all races, ethnicities from places all around the world.
Also, the issue in women's sports isn't with all 40 different DSD conditions - it's with a handful of DSD conditions that only affect XY persons with testes.
Many of the most well-known athletes with XY DSDs who've excelled in women's sports over time were/are not black: Polish-born athletes Stella Walsh (birth name Stanisława Walasiewicz, aka Stefania Walasiewicz) and Ewa Kłobukowska,; German high jumper Dora Ratjen; Czechoslovak runner and jumper Zdeňka Koubková; Dutch sprinter Foekje Dillema; English shotputter and javelin thrower Mary Edith Louise Weston; Spanish hurdler Maria José Martínez-Patiño; Dutee Chand from India; Austrian alpine skier Erika/Erik Schinegger.
However, many DSDs are autosomal recessive, meaning that a genetic mutation causing them has to be inherited from both the mother & the father. As a result, those sorts of DSDs occur much more frequently in certain places on earth than others nowadays because of consanguinity. Which means they can be found most frequently where people live in remote villages isolated from much of the larger world; where the custom is to mate solely within their own kinship groups, ethnicities & religious communities: where cousin marriage is favored (as it is amongst, say, Pakistani Muslims); & where there are high rates of childbirth amongst girls, some of whom will turn out to have been impregnated by a brother, father or other male relative.
(Whilst rape of girls by male relatives occurs everywhere on earth, in many places in the world the girls who become pregnant this way will have abortions. But this doesn't happen in places where child marriage & giving birth young are normalized, abortion is either unavailable or frowned on for cultural or religious reasons, & where girls & women are still seen as property or second class rather than as autonomous beings with equal rights.)
Moreover, DSDs are more likely to go undetected & undiagnosed early in life in places where births occur mostly at home & babies aren't examined by pediatricians or pediatric nurses soon after birth & every month or two in the first year the way they usually are in places where births occur in medical settings or under the auspices of a government health program like the UK's NHS. DSDs undetected early in life are likely to remain undiagnosed until later on in places where children & adolescents don't receive regular (or any) thorough medical checkups like they do in the US, where an annual medical exam is usually required to start & continue enrollment in school.
Nowadays, however, anyone from any place on earth competing in elite level athletics will get medical checkups & they all have access to the internet as well. So no matter where they come from, even newbie athletes in track & field will have seen a doctor & heard about DSDs. All coaches, scouts & sports authorities everywhere on earth will know that XY DSDs are "a thing" in women's athletics too.
Since most people outside the sports world have heard of Caster Semenya & the controversy surrounding Semenya & DSD athletes in women's sports generally, I find it highly improbable that two up-and-coming talents in women's track from Namibia - a country that is next to South Africa & used to be part of it - aren't well acquainted with the Semenya story. Moreover, it's pretty much unheard of for a female person anywhere on earth to reach 18 without every having had a menstrual period - & when this happens, girls/women tend to be very distressed about it, & curious to find out why. Given that Mboma & Maslingi both have Instagram accounts & seem like reasonably intelligent people, I find it hard to believe that they never once turned to "Dr Google" to try to find out why they've never menstruated.
The upshot is: the claim that the two Namibian runners & their coach had absolutely no idea until just now that they might possibly have XY DSDs doesn't ring true to me. Such claims, suspect though they were, worked well for Semenya & Athletics South Africa for many years since Semenya first made headlines in 2009. But because of the massive publicity Semenya has brought to the issue of XY DSDs in women's sports over the past 12 years, those claims don't wash when used by younger athletes just starting out today.