My daughter was in an AAU tournament a few years back. The two teams that were playing before her got into a huge brawl. Well, one girl from one team and the entire other team (they started it). They let both teams stay in the tournament. My daughter's team had to play the team that started the brawl the next day. Most of the girls were scared to play them and it showed on the court. Towards the end of the game, the other team started their crap again. The whole bench for my daughter's team got up. They were ready to mix it up if they had to. And their coach said he liked that they were ready to back their teammates up.
No, this stuff doesn't belong in basketball. But I was glad when my daughter got off the bench, ready to back her teammates.