That's a pretty naive take on things to be honest. There's previous video evidence of people who are supportive of the "cause" turning up at protests and subsequently taking a kicking! Think I posted one some time back saying that their "ally" cards had obviously been revoked!
Personally I'd just stay the hell away but I can understand why people would want to defend businesses and properties from looting and arson.
It isn't a naive take on things, because evidently him taking the weapon has resulted in people dying.