My feeling is it probably was not done intentionally, but when a large group gets lit up it very frequently gets loud. The trouble was the defensiveness when they were asked to keep it down.
Probably not intentionally, but its a learned behavior like many things we all do.
Some people refuse to adapt their behavior to their environment. Instead they expect the people around them to adapt. Its a complete lack of respect for other people.
Narcissistic and selfish, but its not limited to black people.