South Park and Imus    I couldn't help thinking about both last
night. This week's South Park was its usual sharp, subversive
self. And the visual games they play with race and gender and
sexual orientation, and the language they use, leaves Imus in
the dust. And yet South Park is not in the slightest bit
offensive to me at all. This week, they had a hilarious parody
of 300, including a battle between a phalanx of determined
lesbians defending a gay bar called "Les Bos" and a group of
Eurotrash Persian club owners threatening to take over the club
and fill it with velvet blue carpet, gold curtain rods and white
statues. They also threw in some Latino immigrant stereotypes
for good measure. How do they pull it off?  Three reasons, I
think. The first is that they're a cartoon. No actual person has
to take responsibility for saying any of the naughty words and
stereotypes involved. When Eric Cartman tells Kyle that he
should go back to San Francisco with the rest of the Jews, it's
the character voicing the colle