But seriously fuck Fate/ and it's Archer Bias
Why do they hate Berzerker so much?
Why did they make Karya's name sound exactly like mine?
Why did they kill off Flandre?
How did Kiritsugu just die? He looked fine to me?
Why is the Archer class reserved for douchebags and faggots?
Why does the entire soundtrack sound the same?
What the fuck is with this Tousakha's anus meme?
How the fuck has there been no public reaction to this tounament that 9/11s entire cities every few years?
You're a secondary aren't you?
the hell does that even mean?
It means you've watched the anime and not read the source material. Somethings aren't your fault for not understanding, like Kerry's death and the covering up that the church and the mages association do because the anime doesn't really spell it out for secondaries and just kind of implies it. The anime really did a shit job of explaining that to people.
Kerry dies in the final scene of Fate/Zero after his discussion with Shirou about wanting to become a hero. He takes his last breath, remembers his conversation with Shirley, and then passes away. Angra Mainyu's curse wasn't just him spouting bullshit, he actually did curse Kerry and it had been eating away at him since then.
The only 9/11 type thing that happens is the Fuyuki fire at the end of Zero. The church and the mage's association cover it up and everyone ends up believing that it was basically a fire on the scale of the San Francisco one back in 1906.
Everything else is basically your personal opinion. Although I agree on the SN sound track. It goes well with what's on screen, but doesn't really stand on its own very well other than a couple tracks like "Rins Melody".
Fate stay night is the worst anime ever