What tastes, exactly, do you think I want pandering for?
You clearly hated 9S from the start, so you have literally ignored any positive aspect of his character to make this stupid rant. Why do I say this? Because, in THE FUCKING MAIN QUESTLINE, the game answers every single fucking misconception you have spewed onto this thread.
Yeah she told 9S to help 2B, she didn't tell him "Hey go open up our highly classified servers and fuck around in there while leaving an open connection to all the crazy Machine lifeforms who would love a chance to give us robot syphilis."
Not you fucking dolt, 9S did not open the servers, it was the androids who designed YoRHa who put the fucking backdoor in the first place!
He is literally screaming "MUH TOOBIE" all the fucking time.
No, he fucking isn't.
Read his fucking interactions on throughout the game. His last speech towards A2 is about the pointlessness of YoRHa, and the fact that he is upset that how he and his comrades were used as sacrifical lambs for a pointless cause. Look at the end of Route B, and how he reacts to the Commander telling him the truth about humanity. In case your lazy ass can't be bothered to read, he's more than visbly shaken, and the only reason why he never speaks about it is because he had to get back to his mission. Fuck, look at his interactions in Route A with the machines. He's been hating the machines his whole life, thanks to the conditioning he has gotten as a soldier, so hence he's in denial whenever the machines demonstrate human-like behavior. To sum it all up, he is going down the crazy road not because of 'muh toobs', its the rampage of a man that has absolutey fucking lost it all.
The only time he ever goes into 'muh waifu' mode is whenever A2 pops out at him, and given that A2 never bothered to explain why she killed 2B out of mercy, and the fact that 9S was more than capable of curing the Logic Virus, its a extremely sound justification for revenge.
What other interpretation am I supposed to have? And all that is nice, but you see, none of it matters because it's happening to a character I don't like.
The fact is, you are wrong about a certain character, and its not my fucking job, nor the game, nor anyone else, to have to explain to you every single detail of the story just because YOU IGNORED IT ON PURPOSE.