How to Lay Out a Theme

The theme is almost a word that people hate because others theyis so much associated with, like, terrible high school english classes. But how do you kind of lay out a theme or the the point that you're trying to make? Usually it's the same point that the protagonist learns by the end. So if i take a perfectly genra fiction book, let's take the hunger games, right? It's jonro fiction. Why a, a, what do i want? You know, what did suzanne collins want us to feel by the end? She wanted us to feel maybe that you have to trust people and be willing to stand against an unjust system. And that