The people are reacting to the threat that he represents, and not really to the camera he's holding. He sounds like a young adult male and acts like he is eithe

The people are reacting to the threat that he represents, and not really to the camera he's holding. He sounds like a young adult male and acts like he is either delusional or insane. Humans perceive others acting specifically oddly to themselves as a danger and tell him to back away - they don't know that he is trying to make a point, and to them he could be a pervert, a stalker or any other bad thing. He'd get the same reaction if he stared at them or stalked them. Stare/stalk situation: > Threatened person: "Why are you staring/following me?" > Perceived threat: "I'm just looking/walking." > Threatened person: "Stop doing it or I'll call the cops." Surveillance cameras don't get the same immediate reaction because there is no human behind it who could be an immediate danger. Also they aren't literally in your face nor as physically intimidating as an adult male would be. The only point he proves is that perceived stalkers of unstable mental state freak people out.