Awww did he hurt your pussy...Brazil is not a race idiot.
Are you one of those people who think that racism is only racism when it's against one of the major "groupings" like "black" or "white"? Because those groupings are arbitrary, and "race" has always been defined as any group with a shared heritage and culture. The Asian race is a large grouping; the Chinese race is a smaller grouping. (See also the use of "race" to describe elves and dwarves in fantasy works; there, it's used to describe other species or subspecies. Race can be as large or as small as you want, and it's also used in biology to describe different "races" of sheep, for instance). It doesn't just mean "Black, White or Asian".
There are many idiots who go around saying nonsense like, "It's ok to hate all Chinese people, it's only racist if I hate all Asians". These people are not only profoundly racist, but retarded. Let's turn it around the other way - many Nazis said that only Northern Europeans were superior, and looked down on Southern Europeans and Mediterraneans, and especially Eastern Europeans. Since they're making a (positive) discriminatory statement about only a part of the "white race", rather than about the whole white race itself, are they not racist? And if we're going to narrowly define racism that way for no good reason, then surely anyone can see that certain types of "ethnic hatred" or whatever you want to call it are morally equivalent to 'racism' against one of the major color groupings.
If, on the other hand, you're saying that racists are aware Brazil is multiracial, I call bullshit. Rednecks are largely grouping "Brazilians" in with a generalized view of "Latinos", who they view as a mixed-race brown people. They're not taking into consideration that there are white and black Brazilians. And you know that.