The Purge movie would have both made more sense and also been meaningful if they made the premise what the movie actually is -- a day of the year when the rich hunt us openly.
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that is in fact the plot of the second and third movies, as well as the prequel and the tv sereis
A poor guy in the second one sells himself to a WASP family as a ritual sacrifice instead of seeking medical treatment for his expensive disease. There's a Black Panthers-type neighborhood militia. It's quite pointed.
