/johnny
Because the books and movies are extremely popular and speak to a new generation about the nature of government power. If you want to speak to a young person about politics, it is good to speak to them in a language they already know.
Hunger Games was written by a very liberal woman, but like a lot of arrows they shoot, it wildly misses, because it works much better as an anti-Progressive story than an anti-Conservative one. It is a story of a future Tea Party movement.