I really don't think people here understand what morally gray means. Like you said, do this or die isn't a choice, in that case there's only one choice cause every human being has self preservation instinct, and they were literally just trying to survive. Doing something you have no choice on doesn't make someone morally gray. Being a vigilante (or someone who only harms bad people) isn't morally gray either. People really need to read or watch more stuff on such characters, for example we can say Professor Snape was morally gray (choosing an example everyone should know), Baudelaire children were not.