I believe (didn't come to this conclusion entirely on my own) that us guardians are doing the "right," thing. I do not however believe that the speaker is innocent. I think the Vex are our race when focused on the harmony of combining man and machine. The cabal could potentially be our civilization if we were entirely militarized. Nothing really for the hive except for maybe some freak accident. The fallen, well idk... Now we start the game being reborn. We have no idea where we fall on the span of time. Where my final thoughts in the story of destiny lie is that all of these races are trying to stop the destruction that is mankind and that we have tried many times to stop it. That's the only reason I think they were able to get Paul McCartney onboard. In conclusion I think it's like an awareness thing idk