The Ark, I think, is Earth's utopia. A place where science, beauty and happiness are on top. Then came the refugees, which was no problem. They needed a place to live, survive. We, we who created "The Ark", opened our hearts and homes.
Now they demand too much. They think we have unlimited resources.
The fact that we withhold those supplies is a lie.
Our security was designed to take care of criminals, not terrorists.
Sure, we may have been harsh. But these freedom fighters spilled the first blood. I think they made war, not those who lived on the Ark from the beginning. Now we just defending ourself.
(All this should only be considered as in-game morality, not my real morality. Just something fun to talk about before the game comes.)