In response to Marurun's point, I'm under the impression that Twilight has gone through a critical reevaluation in recent years. While it may not be profound literature, I've read a lot of folks online say that they regret being too hard on Twilight. At the end of the day, it's a romantic fantasy and doesn't necessarily need to model a realistic healthy relationship. I'm basing this largely on my social media bubble and Lindsay Ellis making a video on the subject. And I'm under the impression that the Adam Ellis comic is more a parody of the deluge of wannabe titles that were trying to crimp the style of things like Twilight or Hunger Games rather than those titles themselves.
But Repo's certainly allowed to not like those books. It doesn't change the fact that they resonated with a great many people.
And I want to add that Battle Royale is definitely making some sort of social statement, even though it's not immediately obvious for Americans. I'm pretty sure it's a reflection of the immense pressure to succeed placed on Japanese students, exaggerating the normal pressures by having characters pressured to murder each other. While Japan has less violent crime than countries like America, there is still a fair amount of explosive antisocial frustration that usually manifests as the NEET/hikikomori phenomenon. I know there have also been comparisons to the original novel and the Kobe child murders.
(I feel weird making this argument because I've never read or watched Twilight or Hunger Games and I've seen the first Battle Royale movie but didn't especially like it.)