Oh no, it has my attention, that isn't to say I have a actual argument constructed here beyond bare bones, I don't value fictional life but other then that I'd say premise was actually on the money. Let's say I did, why would I care about the Quarians in that scenario? I mean even if I was Shepard, by this point I would have been subjected to some very sketchy crap because of them, thus making me wonder just why I should care about them reclaiming their world at all, beyond the fact it was hoisted upon me because Hackett thinks it would help.
See, now we are talking about something interesting. By hypothesizing about the fictional world, we are not discussing the fate of pixels, we are using it as a means to discuss our stance on moral issues.
As for the quarians themselves, you could see it from humanitarian (well, sentient-itarian in this case) perspective that the quarians that live today are not the ones who made or fought the geth. Since they have no viable option to build a home somewhere else and since they are suffering a fairly harsh existence in the fleet and since it is actually not a big problem for the geth if they get Rannoch back, you could argue that it is needlessly cruel to wrok against it. Of course, if you don't have the the option to make piece for one reason or another, than you will have to weigh the situation of the geth against those of the quarians. Both sides have pro and cons to them, the geth did at least as much harm to Shep directly as the quarians did indirectly by creating them so there is no personal bias (that's why they call it a moral dilemma). But at least now we are arguing the opint at hand again.
Beyond that point? I was rebutting the notion that any of this has any sort of validity or point to it, Its a bunch of text avatar's grumbling about a video game series on a forum.
And that's a matter of perspective. Sure, the intrinsic value of our decisions in the real world are not existent but there is value in the hypothetical discussion in itself. It tells us something about the character of the people we are talking to and maybe even about ourselves. Ultimately, while we are talking about fictional characters, we are still talking about real life values. That is the interesting part and that is what makes morally ambiguous decisions in a game like this interesting in the first place. It's what I like to discuss, I like to see different viewpoints on an issue, maybe find one that I haven't considered myself yet and learn something from it. If you see it from that perspective it's not pointless and consuming fiction in this way is not just a fun waste of time but an opportunity for reflection and discussion.