It seems a bunch of Africans demanded entry to a football club do. They were denied as they were not members. Thereafter it kicked off.

What I want to know is why they thought that by demanding entry they would be allowed in
Why they thought that violence to members would make them welcome.
Why the club members didnt beat them to a sticky black stain in the car park.
Why the police did not arrest immediately when there was plenty of evidence of violence, affray and vandalism.

Can anyone give me an insight into Australian society as it appears to be degrading on several levels.