I disagree.
Unless he had a fire arm and several extra magazines.
When facing a group of teens with an obvious disregard for human life you would have to have little regard for your own life to try and intervene in their wilding.
I think he was brave to record their crimes with his cell phone.
They could have taken notice of his recording of their crimes and decided to violently take his phone away from him.
Did you miss the part where a young, apparently unarmed woman actually went to the victim and pulled him away from the criminals? She didn’t go in fighting, she just got him out of their looting of the car.
Whoopie dingbats, he recorded. You know what I want if someone’s beating me up? Police and pronto! He can record after calling. The thugs didn’t seem to care at all about anyone else other than their victim.