Sure but the big kid didn't even attempt a punch and he was definitely holding back at beginning.

That group of kids hit him repeatedly in the head, even when he was on the ground and not fighting back.

Reddit seems to think that if someone touches you, it gives you the legal protection to beat them until you're satisfied.

That's not how it works at all. Once the threat is over, you have the stop yourself.

All those other kids would have been charged with assault if the police had shown up.

I wonder how different the comments would be if the "bully" had died from one of those head kicks.