Angry gamers have been to Anita Sarkeesian (and gaming feminism in general) what DRM has been to piracy. Attempts to kill a thing have only made it stronger.
It's an age-old situation, but one we as people have yet to master, despite years of experience.
It's especially troublesome when any attempt to seriously debate with somebody has been undermined by threats to rape her. I mean ... who really expected that to accomplish anything positive?