i dont have close friends that are black. not because i dont let it happen, but because black people dont have high education, computer sciences. high end jobs in industries i deal with. online businesses i work with, or have jobs up in the offices of my broker(s).
i guess i travel in different circles... i dont seek to make friends of any type. im an adult and thats not practical.
if i make a friend its because he has a similar life to me, and its convenient.
however i do see them loitering all over the streets of any city.
Your claim would've been legit if you hadn't have said "black people don't have high education, computer sciences, ..."
Them being black has nothing to do with the level of education they receive. It depends on the person entirely. True, there might NOT be many black people in the industries you deal with, or for some people, in the schools they attend that care about education. That isn't because they're black; it's because of how they were raised, once again, and what they want to do in life.
If they want to do music, art, etc., it doesn't mean that they aren't smart. You really only have the right to refer to someone as not being smart if they do things like in the OP, show no care for other people, education, etc, and show no signs of changing.
There are also black people with much higher positions than you have; does that make it right for them to treat you like you aren't worth their time?