Once again, I bring up my Yiddish theory.
It's in our traditions, in our jewelry, in our nicknames, and we know when to pay respect to somebody. But does it really effect how we live on a daily basis? Not really.
When they say America and China have blended together, I'm really thinking its leaning towards America's melting pot ideals and our eventual apathy for specific details.
As for the Asian dominated traits, hey, I threw it out there because it makes sense when I look at Asian mixes. I've known Brazilian/Koreans, Mexican/Koreans, Chinese/White, Japanese/White, and one or to Blasians, with everyone I personally met, the Asian traits were not as dominant, they were there definitely, but definitely blended. Even less so when one grandparent is Asian. The exceptions being with those with half white/ half Filipino (my nieces included).
In reality, I'm simply trying to ease the tension for you with a made up theory, because I DEEPLY hate it whenever people get touchy about race in media. I understand the frustration, but what then happens is Affirmative Action miscasting. To be perfectly honest, they probably thought Summer Glau was indistinguishable race-wise (yes, I know she's white) that she would be neutral. I bring up Friends was on air because that is what comedy was and what people thought of America. That has got to be the whitest show ever. Firefly had not one, not two, but three well spoken main characters that weren't sassy that had a background that wasn't Western European was impressive at the time. The world of Film takes baby steps towards equality. It has one film every few years that throws racism in our face, and then takes its time easing the bigots into new accepting ways. It's not right, but that's how it works in LA.
FOR GOD SAKES,THAT WAS THE YEAR CHRISTINA AGUILERA WAS IN HER DIRRTY VIDEO AND ALL HELL BROKE LOOSE.
I'm not saying it was right, but I'm not going to throw torches and cry that it was stupid due to the inability to find a suitable Chinese actor. Just like I'm not going to be upset that a Russian played the King of Siam, or wiith Morgan Freeman playing what was supposed to be an Irishman's role because they were all damn good at it.
By the way, I'm actually quite "eh" about Joss Whedon, I'm more of a Bryan Fuller/Tim Minear fangirl.
EDITED FOR CLARITY.