Can Black people really not drink milk?

i dont know, why dont u ask them

There are a lot of people who can't handle the lactose in milk.  Black people are more likely to have that genetic predisposition, but they aren't the only ones.

has to be choclate..

Lactose intolerance is more common in Blacks than in Whites, less common than in Asians, but most Blacks can drink milk just fine.

Most people globally can’t consume even moderate amounts of milk beyond childhood. It’s actually normal. 

   Female humans have breast and with a pregnancy  produce human BREAST milk for their off spring and has no limitation related to SKIN COLOR ..

.. as to the human population  digestion of human and  other MAMMALS  milk product such as cows water buffalo camels goat sheep  reindeer yak  LACTOSE INTOLERANCE   is the reduced ability to digest MILK , due  to INSUFFICIENT amouts of GUT ENZYME  called LACTASE. ( not Skin color )  Breast feed  babies can be lactose intolerant , because  lactose  in found  in breast milk  as well as baby formula   

. Lactose  intolerance ( based on studies )  in ADULTHOOD is most prevalent in PEOPLE of EAST ASIAN descent with 70 - 100 % of people  affected in these  communities  Lactose intolerance is also very COMMON in people of WEST AFRICAN , ARAB , JEWISH, GREEK and ITALIAN  decent  according  to Medline plus genetics  Northern Europeans have a lower rate  of  18 - 26 % lactose intolerance  LACTASE  ENZYME  production is produced  by the LCT GENE and over time this Gene  becomes less active with age  symptoms  bloating  flatulence  diarreah nausea vomiting abdominal cramping  indigestion belching  caused by  bacteria in the colon ferment  the undigested lactose

The real question is how someone as stupid as yourself can type whole sentences.

I do notice all of the black people I know do drink milk and don't see anything wrong with that

Some can't. There is a thing called lactose intolerance which is a common condition caused by a decreased ability to digest lactose, a sugar found in dairy products. It can cause abdominal pain, bloating, diarrhea, gas, and nausea. The tolerance for  lactose varies enormously worldwide, with the highest prevalence in Northwestern Europe, declines across southern Europe and the Middle East and is low in Asia and most of Africa, although it is common in pastoralist populations from Africa

Some (perhaps most) people from the Indian subcontinent are lactose intolerant.   This probably applies to a lot of other places too.