This outstanding essay by Anne Ursu is an absolute must-read:
So the peculiar canonization of John Green and this string of bizarre articles that anoint him as the vanguard of a post-sparkly-vampire seriousness in YA isn’t simply about taking a white male more seriously than everyone else. It’s also about privileging a certain narrative structure—the dominant narrative’s dominant narrative. It’s not only that Green is a straight white man, it’s that he writes in the way that generations of straight white men have deemed important and Literary. And in art, the remaking of form has historically made the establishment very uncomfortable. There’s so much innovation in YA (and, hi, middle grade!) and its audience is wonderfully open to new stories told in new ways. By holding up Green as an exemplar, by shoving his peers into his shadow, these critics are telling writers who might be innovating: if you want to be important, write like him.