Stop hatin' on Mencia! He's a hilarious comedian! The reason people have so much spite over him is because he rose as Dave Chappelle was crashing and burning.
Folks, Chappelle wasn't even funny to begin with, ok? His entire act consisted of bashing white people, which was only funny because of the whole political correctness atmosphere. Well, it would've, I guess been funny if he'd had good punchline timing, and all that...which he didn't. And then, he jumps ship to South Africa and admits he really does hate white people, nullifying his entire act, and proving he was just a racist prick the whole time.
Carlos Mencia makes fun of everybody..and he does a great job of it.
But back to the episode...loved it. They managed to take a one-note joke, and use it the entire episode, and keep it funny. Only South Park can do that, and believe me...others have tried.