It's like an Onion satire of a humorless, feminist scold... but it's real.
There's a lot wrong with this piece, but I liked this line: "His longtime favorite term for women, "femi-nazi," doesn't even raise eyebrows anymore..."
Um....ladies? Rush doesn't call all women femi-nazis. Just you. Your creepy desire to set yourselves up as arbiters of acceptable speech makes me think he's got a point.