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The writer's claim that the passages in question were satire does not hold water. You can't float in and out of the conceit of pretending to identify with those you wish to skewer, and still call it satire. And you can't describe a (presumed, by her, at the time) act of rape AS an act of rape and still call it satire.
No, what Ms. Marcotte indulged in was merely sarcasm. Many aspire to satire, and some even claim it. But precious few can really pull it off.