Personally?
I blame Kotaku and Polygon for her fame. They put her on a pedestal.. and the things they reported about would be taken up by any other gaming website as gospel.
What alot of people here tend to forget was how the big gaming websites pretty much entered a symbiotic relationship with Anita. You couldnt go a week without an article about her person, her "work" or what paranoid delusional bomb/gun/rape threat she had come up with this time.
They reported that this "brave and strong female" internet nobody got harassed by 4chan because she "dared" to challange sexism in video games... wich generated alot of clicks for them. She in turn got her kickstarter funded with overwhelming success, gaming websites keep reporting about harassment (wich was carefully moderated by femfreq) wich in turn gave Anita even more support, wich in turn generated more clicks for those websites and the show was going on and on and on till the aftermath of the GamerGate fiasco bit most gaming websites in the arse by becoming irrelevant and unapealing to advertise on....
See the thing was that there was not a single one of the big gaming websites that ever took a critical look at her videos, her methods and the flaws in her arguments.
Infact the reporting about her never really was about the things she said or tried to argue, it was allways only about brave Sir Anita fighting the internet trolls because she dared to speak against mysoginy and sexism in the industry.
That she completly failed to proof such things exist was never ever questioned, nor that her videos where utter garbage rive with stolen footage, deceptive edits, context avoidance, false nonsensic claims and links to "scholars" that turned out to be feminist internet blogs without any credentials.
Bad tropes arent sexist... they are just bad story tropes.. but that wasnt the argument she made, she made the argument that bad story/character tropes ACTUALLY negatively influenced the real world... this claim alone should have made the gaming websites realize that shes just another jack thompson
THAT was what got people really triggered, the unwavering, unquestioning support from the gaming media and the constant shoving in your face that was going on. And in all honesty i think most of the vitriol should be directed at gaming media for pushing a liar like Sarkesian like that.