Race relations in the US...too fragile for TV?

[Atrahasis]

So we finally see on Desperate Housewives the story behind the Applewhite family, about how Caleb beat and killed Melanie Foster.

Now, Caleb is a black boy. Melanie Foster could've been a white or black girl. But she's actually....Asian?

What the hell kind of casting was that?

What, is it now not OK to show a black man beating and killing a white or black girl but it's OK to show him killing an Asian girl?

I'm sorry, but it's just that Asian girl angle was just totally out of left field for me.