I'm pretty firmly in the "Hunter was right" camp over here. She put her hands on him, after being told not to multiple times. She sexually assaulted him - children may not understand exactly what that means, but Hunter obviously knew enough to feel violated. If something similar had happened to an adult, we would be praising their actions. Being a child doesn't mean you cannot defend yourself - teaching a kid that young that they will be punished for doing so is extremely harmful!
When I was that age, no one even THOUGHT of the implications much less ACTED on them. You can blame mass media for implicitly, if not actively promoting that sort of behavior, and I don't mean Hunter's defending himself either.
Yeah, I'm one of the people that thinks Hunter is right to defend himself. In addition to the abuse from before, the way the raccoon pulled him away could potentially be considered assault, from what I understand. I'm not big on forcing anyone to do ANYTHING, except maybe in extreme circumstances.
Not to say I don't think the girl isn't innocent. I don't think she truly knows what she's doing, and I don't think she meant to hurt him.
Though if this were an adult situation... well, I was taught to do whatever it takes to stop someone from trying to rape you. As a side, things like pulled hair and skin under the fingernails can make for great DNA evidence.
As for the situation in the comic, I think my opinion can be summed up as 'life can be messy/messed up' and 'I rreeeeaaalllyyy hope this gets sorted out properly and she learns better.'