First of all, the allegation that the film is political propaganda is pure bollocks. Despite the mockery of extreme right-wingers and 'Obama-as-Hitler' ridiculousness, "God Bless America" proves to be, like it's protagonist Frank, largely politically neutral.
By the beginning of the film, Frank (Joel Murray) is enraged and psychotically angry. Drinking and fantasizing about killing the inconsiderately loud next-door couple and their baby does little to quench his increasing blood lust.
To most people, Frank seems like a quiet, mild-mannered middle-aged man. But in his head Frank lives a much more violently intriguing life, as most of us do. Divorced, father to a bratty little child who cannot be bothered to spend time with him, Frank is fed up with what he perceived as the downfall of American society.
But it is not until he is diagnosed a inoperable brain tumor and loses his job that he finally snaps, cashing in his military service and targeting the b**chy star of a reality TV show, Chloe (Maddie Hasson) of "Chloe's Sweet Sixteen."
Joel Murray is outstanding as Frank, but Tara Lynn Barr is less impressive as Roxy, the sixteen-year-old girl who accompanies Frank on his killing spree. Roxy has feelings for Frank that are not reciprocated, and the platonic relationship between the two is one of the main points of the film. That and a whole lot of anger.
"God Bless America" has lots of satisfyingly bloodthirsty violence, a great soundtrack, and equally bloodthirsty satire as Frank and Roxy dissect modern American society. The fact that we sympathize and are to some extent compliant in the killings does not keep me from loving this movie, and is instead and interesting manipulation of audience loyalties.
Joel Murray proves he is every bit as good if not better than his brother Bill, and his rage and disgust is palpable. Roxy is a slightly annoying and overly sadistic sidekick, but some of her lines are funny and her presence is crucial to the plot.
So is Frank right? Have we become an ugly and cruel society? I would argue that the ugliness is intrinsic to human nature period, American or not. I think other countries have slightly higher standards when it comes to film and television programming, but I also think that the need to shock and degrade is in our genetic material, whether we live in the US or France or Timbuktu.
Nevertheless, I recommend this movie to people who enjoy the darker side of humanity presented in film. My dad argues that to like a movie like this, you must HAVE a dark side, which doesn't say much to the fans of this movie. But one could also argue that some extent, your reaction to this kind of comedy shows what kind of person you are. For better for worse, I am a fan. That is all.