A justification for American militarism from the South Park guys in the form of "dicks have to fuck assholes" or whatever.
Racism towards Middle Easterners and Kim Jong-il too, because why not?
The real problem is that some Hollywood actors said the Iraq War was bad.
At least to me personally, Manbearpig is the worst thing they've ever done. It was practically impossible to even mention climate change online in the 2000s without someone going
lol Manbearpig! 
Propaganda works and no one is immune to it, especially not irony-poisoned South Park consumers.