Were any other rioters charged that night or any night with violating the curfew? Unless there were the defense could argue that they were piling on charges and malicious persecution. (Hell I think he's a hero.)
Irrelevant. Rioters aren't being charged in this trial -- only Rittenhouse.
My opinion is also irrelevant, but I think if Rittenhouse is guilty of anything it's poor judgment in grabbing a medical bag, a firearm, and trying to save the day. He shouldn't be punished for his poor judgment beyond what he's already been through. When I was his age, I was just trying to figure out where my time card was at work -- certainly not trying to make a difference in my community. He should be admired for that reason, but as we all know, if he was ignorant of the law about his age and firearms, that's no excuse.
Fine him a couple hundred dollars and 80 hours of community service.
Let him learn from his mistake.