Argolas wrote...
While there are discussions about ethics here, I think I have to point out one more fact: EDI's death and the extinction of Synthetics is plain and simply the Catalyst's fault and not Shepard's. If the Catalyst was honestly ready to offer Shepard a Destroy option, it could do so without any more casualties, for example by sending the Reapers into the next sun. However, it does not do that, it doesn't even call off the attack for a single moment as one would expect from someone who is ready to negotiate, practically holding a gun at Shepard's head and thus forcing a decision right now.
The only thing that Shepard can be made responsible of is his/her decision: Destroy the Reapers, Control the Reapers or synthesize the galaxy. Every other consequence and side effect of these decisions is the result of the Catalyst pushing Shepard and thus it is the Catalyst who is to blame for them (not to mention it is its fault that there is a problem here to begin with).
The problem is with all that that Shepard chooses to act and then is killing EDI by acting. If it happened some other way then Shepard wouldn't be responsible in the same way. If someone dies because you did nothing, that might be negligence. If someone dies because you act and know that that act will kill them, you committed murder (there are different types of murder), but basically it's your fault. Shepard doesn't even have to choose Destroy or anything at all, so it's an intentional act. S/he's not forced to do it which is another thing altogether. The kid may be holding a gun to Shepard's head, but he is not saying that Shepard must pick Destroy. He's not even telling Shepard to make a choice.
I agree that it's the catalyst's fault for all of this. It's also Leviathan's. Leviathan created the stupidest situation and response to a problem for such a supposedly intelligent race. Their main feature is enthrallment (control) and they wanted to stop killer synthetics by creating a killer synthetic that is not under their control (that they could have at least kept from killing them).
The kid is the most warped AI ever. And you point out another of his problems. He says the reapers (his solution) no longer work, but he keeps using them. If he's a logic device, he wouldn't use something that does not solve his problem, but he does. So, sure, go ahead make a choice that he gives you.