The Orz are "They" and they did something bad to the Androsynth
The Orz are "They" and they did something good to the Androsynth
The Orz are "They" and they did something neutral to the Androsynth
The Orz try to protect races from "Them"
The Orz are just interdimensional tourists unaware that they do bad things to people
The Orz are just interdimensional tourists unaware that they do good things to people
The Orz and the Arilou just have different views about what must be done with non-IDF races
The Orz aren't "Them"; they just came along after "They" did something to the Androsynth. The Orz don't like "Them" and don't want to attract "Their" attention.
The Orz aren't "Them"; they just came along after "They" did something to the Androsynth. The Orz do like "Them" and don't want you going after "Them".
The Orz aren't "Them"; they just came along after "They" did something to the Androsynth. The Orz did like "Them", and whatever "They" did to the Androsynth destroyed "Them", too (or hurt them somehow). I
The Orz are "Them" and what happened to Bukowski is the same thing that happened to the Androsynth, but it was and is involuntary on the part of the Orz. Perhaps just being near them is enough to result in horrible, horrible death.
My rough theory on the Orz is that the 'Synth were trying to make a dimensional portal or a device
In fact, as the first lander report at the Androsynth ruins tells, they used some Precursor artifacts they had found at Alpha Lalande.
Quote from: Elvish Pillager
If they don't believe that you're definitely allied to the Androsynth, why would they rather attack you than tell you what happened?
As an extension to Zeep-Eeep's argument I'd like to add that Orz seems very based on feelings rather than reasoning, Although this would mean that he simply react so virulently because he doesn't like the subject/has a childish type of remorses - which is my opinion -, it also implies that he really had a "good" reason for his retaliation - his exaggerated reactions. It's a perfectly viable theory.