How is it cultural if they have money?
I'm sure there are Africans on the home continent who can't do that cuz they don't have the bread
Sounds more like a class issue
Class breeds culture. You were too busy trying to find fault in my point and ended up missing the whole point.
Black Africans who make it to America arent necessarily coming from wealthy families to begin with. Some do due to their parents having educational ties in the US. Many do come from poverty and have been raised to believe that the only way to a better life is to be as educated as possible. So when they do make it in America, education is all they know and that culture and belief system gets passed to their kids. They use the resources they acquired in order to make it easier for their offspring to flourish.
Thats the culture that determines representation over multiple generations.
In America, sports is BIG and very lucrative. Also there is lots of young black talent. That reason is why you will tend to see young black kids dream of being high level sports atheletes much more than scientists. Its because thats what they are exposed to more due to how popular and lucrative sports is in America. Add the poverty factor into it and how expensive education is, then you will see low representation in STEM jobs from black Americans.
Again, it is very much cultural.