Adam Jensen said:
His reasoning is that the creators will always rebel against the created and that synthetics will kill all organics. Which never happened. NOT ONCE. Can you understand that? SYNTHETICS NEVER KILLED ALL ORGANICS. Which makes his conclusion about the whole idea just a wild speculation. He simply can't know what will happen.
Actually, it's implied in game, across several games, that the Geth and being non-hostile is extremely unique and as a result of their pseudo-hive mind. Additionally, EDI can easily be written off, as it is entirely plausible that Cerberus produced several AI's before creating one which was non-hostile. In ME1, there is a side quest where a rogue AI is stealing money from the casino with the sole purpose of transferring himself into a spacecraft so it can join the Geth (which it believes to share it's common goal of the annihilation of organics). The kicker is that the AI was created by a less sophisticated AI to continue it's goals in the event of it's detection. Additionally, the council's laws against AI existed BEFORE the Quarian's created the Geth, not because of it (Tali outright states that when they created the Neural Network, they were skirting the law, but not breaking it). Therefore, despite the fact that the Geth, the AI you primarilly interact with in ME, are non-hostile, there is enough evidence to reasonably assume that AI's which are hostile towards organic life are, in fact, the norm when viewed in the large scale.