http://buffalobeast.com/?p=9090 related
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(Line O quoting)
"First off, the show has no discussion of actual class warfare, but rather it begins with the Presidential Fitness test, which Cartman does horribly on, dragging the entire school’s score down to the lowest in the country. Since, he’s worse than everyone else he becomes the “one percent”, and everyone else who is mad because they have to do extra work become the '99 percent'"
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(Line O' Parody comparison)
First off the show has a nice subtle distinction of class warfare and begins with the presidential fitness test, which Cartman does horribly on, dragging down the entire school's score down to the lowest in the country. This government physical fitness test, failed by Cartman parodies the financial fitness accounting tests, failed by banks and the 1%. The banks and 1% drag the entire country's economy down to the lowest in recent history (just as Cartman drags down the school). The government has a policy of not singling out any one person for being physically/financially unfit if they are cartman/the 1%, instead making everyone else suffer.... This begins by pitting the highest 1% against everyone else. The episode's "Class warfare" is brilliant and works on many levels. First it's the 4th graders v. the 5th graders, or two classes engaging in warfare.... Get it? Second, Those two groups are a part of the 99% who have fractured into different classes with one being "above" the other." Kind of like how there are now sites for the "53%..." The entire episode paints Cartman, the 1% as crazy and obsessed with toys, which he is, but it also points out how the 99% are not unified.
Cartman, just like the banks and 1% spend the entire episode blaming everyone else for their mistakes....
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(Line O' commentary)
Respectfully I think the author of that blog has missed the point. There's a lot of symbolism and analogies in this episode relevant to parodies.