Let's see ... data on crime is presented and disbelieved. A suggestion that the OP wouldn't have written '3 white kids' is ignored. I suggest taking a look at:
https://implicit.harvard.edu/implicit/takeatest.html.
In Illinois, I believe it would be classified as 'assault and battery,' not assault. Assault happens when the victim feels threatened. You were actually hit - battered. It's definitely a matter for a police report.
I understand that crime statistics mean nothing to a person who was a victim of a crime. I'm very sorry you experienced this.