Oh please, the Turians were paying lip service to Garrus, he made some changes and preparations but they weren't taking it seriously either.
Are you saying that Garrus had more influence over the Turians, than Hackett over the Alliance?
No I'm saying when Reaper's were making teapots out of human Flesh in the middle of London all the Council Races couldn't keep the denial going.
The Reaper denial was a huge huge aspect of all 3 games and in ME3 once Earth goes down everyone just starts looking out for their own world. Earth was still in the stage of underestimating the Reapers when they turned up. Hackett knew better but he was following orders from and leading people who didn't know better.
So why were they stationed at the relays?
I don't know. Do you want me to make up a reason why then claim it's fact or are only you allowed to do that?
Best guess is the defense council refused to abandon the colonies and the station and told Hacket to protect everything. Hugely underestimating the Reapers.
Hackett presumably tried and failed to change their minds and in the end just decided to do the best he could to save whatever he could, like 60% of the fleet for example.
Hackett strongly implies he knew it was doomed.
LOL. Coronati used carriers to deploy scout drones when the Reapers arrived at the Turian relay. He scouted them there. The Alliance could've done this also.
No they couldn't because they didn't know where the Reapers were coming from. They couldn't just send drones out to find them as they would never get that info back. Again, Arrival DLC.
Who said anything about getting Shepard out? How about getting Shepard as an advisor under the pretense of interrogation? How about doing it when the Batarians went dark?
Using your own logic of "If it's never stated otherwise then we can make something up claim it's fact." who is to say this never happened?