Ignores the large scale just a basic horror flick

Rating: 2/10 (30 January 2014)

On the large scale, allowing anarchy to reign in any country would just encourage revolution and insurgence. Gangs of dissatisfied citizens would plan every year to sow anarchy during the time they know cops aren't going to be around to enforce the laws. If they start eliminating all the cops in large regions, as they do in revolutionary and anarchistic countries, then after the purge is over, who is there to restore order? This is the problem we are seeing in Iraq and Afghanistan, where the new cops are killed off at graduation ceremonies, and police stations are bombed. What results is a perpetual anarchist state, ruled by warlords and gangs.
Well, its against the rules of the purge to use automatic weapons or to go after cops. Again, people who like hunting other people aren't going to just follow the rules because they are docile and easily controlled. They'll probably just do as they wish, eliminate the cops and the authorities while they have a chance, and cause the downfall of the government.
Any society is just a few days away from revolution. Take away basic services over a large enough area, take away emergency and policing, make it hard for people to get food.
Overall, this is just a childishly silly premise for a basic horror movie. What we see in the movie is extremely limited and small scale, ignoring what would actually happen if this ridiculous Purge were to pass.