Most of the people in this video treat the apparently drunk young woman with care and intervene when it looks like someone’s going to take advantage of her. The guy in the yellow shirt, especially, seems to realize the danger that she’s in.
Of course it’s staged, part of the series What Would You Do?, with John Quiñones, which has been renewed by ABC for another season. It features enactments in public of situations that might make people uncomfortable, or try their morality, or test their ability to resist people being awful in public.
As for the last two guys who bascially looked the other way and wished the perp good luck … WhyEyeOughta…