1. The entire premise is based on the assumption that a strong unified central government is better than separate sovereign states, as the film depicts the horrors that will surely come to pass if states exercise their autonomy. The underlying message being "you better support the federal government or this will happen".
2. The heros are journalists, painting anyone who's critical of the profession (which has gone to shit in recent years) in a negative to light. It's hard to believe that journalists will be anything other than propaganda mouthpieces for the ruling regime. It was a brilliant marketing strategy however as seen by the glowing reviews coming from mainstream media.
3. The president, who is evidently portrayed as fascist (i.e. right-wing), disbands the FBI, which is absurd considering the FBI is nothing but a fascist, militarized, national police force and most certainly would be a valuable weapon in the hands of fascist dictator. But the message is that if you want the FBI disbanded you're a fascist, which is pure statist propaganda.

whether the country is headed toward another (real-life) Civil War.