I can't believe we're still having this genre discussion and the polarisations about SciFi is all love and rockets (annd talking squid), Graphic Novels are just comic books, Fantasy is all elves and sorcery and "Literature" is thoroughly up itself.
A big part of why we're still doing this is the problem of having a SciFi section in bookshops and book buying.
And for the record: Gone Away world is absolutely Science Fiction. And it's actually pretty good too.