I noticed in the Whitney Awards that not only is there a Speculative Fiction category, but all of the Youth Fiction category nominees were fantasy. What's with all the fantasy?
Uhmm, that's what is popular right now.
The Whitney's, being a reader nominated award, is going to reflect the general popularity. Right now, fantasy is hot in youth fiction. That's what everyone is buying and reading. (And by "everyone," I mean lots and lots of people.)
Which is a pain for people who don't like fantasy.
But eventually, the pendulum will swing back. The masses will get tired of fantasy and you'll see more realistic novels coming back. When that happens, other genre fiction will show up in the Youth Fiction category.