Who said it justified it? I can tell you as someone who has killed for his country that I don't buy most so-called "justifications". I'm saying that the whole $#@!ing environment there is hosed and that you can't pen people up and treat them like animals and then get upset when they act that way.
They should have just moved them, and said "here is your own country, bye". Instead they made it as uncomfortable and $#@!ty as possible for them to live there, hoping they would voluntarily go or that another country would take them in.