Think you honed in on the wrong things, my friend. The bit about dystopian scifi movies was just an amusing side note. The movie was railing against society's acceptance of all of these terrible things happening in the world, and asking us to do something about it. It was about belief in a better future, not a future without post-apocalyptic stories.
That's a childish interpretation of the film's themes.
I'm honestly appalled that that's all you heard when watching the movie. Also, the themes don't need to be subtle in a fucking kids movie.