from I read there was tension and comments through out the day. I think he or one of the other natives in his group said the kids would say shit like "indians where i live are all drunks" and things like that when they walked by.
I took him walking towards them as activism, and just saying he's not gonna be intimidated. I don't see how any reasonable person could see it as hostile. As he walks towards them you see the kids jumping up and down mocking him. The idea that he and his tiny groupe the aggressors or that the kid was being jesus-like is beyond absurd.