Sauruz wrote...
In the Quarian/Geth conflict, you knowingly decide which race you want to extinguish - without a perfect import. There is no morally good way to solve that conflict, unless you simply deny that the Geth have a right to live.
There are plenty of morally good ways to solve that conflict... if your morality is structured in such a way to resolve deontological and teleological clashes. After all, you are not the reason these these two races are at odds, and you are not the reason why you've come to be able to make this choice. You are not even the one who will extinguish another race: that denial of responsibility of others is just egocentricism. You are simply a person who, while witnessing two groups with incompatible intents, has the ability to interfere with the efforts of one.
Which one do you choose? That's up to what your morality tells you. You could side with the Geth because you believe they are innocent, or because they are the victims, or simply because you don't feel you should intervene, and so let the consequence of Legion/Geth VI acting unimpeded play out. And if any of those, or any other motivation, is morally worse than the alternative, then the alternative is morally right even if it's not nice.
It's called choosing the best of bad options, and being able to determine and decide such is a key aspect of both morality and responsibility.
I can see how these conflicts are similar to past ones, but they have never been quite this grim. The fact that everything we do also helps the war effort, meaning everything we do has an underlying utilitarian goal and those we 'save' are getting sent into a war against an enemy that cannot be beaten and will likely suffer large casualties, also puts a different note on everything. Whereas in past conflicts, we (more or less) just happened to stumble upon them and were free to decide as we wanted to. The urgency of the war clouds every decision in the game.
But it's not just those things - again, it's the entire atmosphere. Whenever the war is brought up in dialogue, you're assured again and again that you will have to do amoral things in this war. In ME2, you're similarly confronted by TIM, and you always get the option to argue against him. In ME3, it's your allies and friends who confront you. They put their trust in you to do everything it takes to win the war. It's difficult to find anyone in ME3 who encourages you not to do that, but I believe the only who does is Samara - but she's such a sidelined character it's not even really noticeable.
Which makes the setting... grim.
Not nihilistic, not the N-abyss, not an amoral abandonment of ethics. It just makes it a grim situation in dark times as you struggle to get through them. Nothing more, nothing less: the world not offering you a way out of your own moral contradictions is not the same as a setting which does not care about morality.