Huge portions of the community are already either QQers or Be a Jerk To Win Guys...and now we have massive racism to contend with? I'm pretty sure harboring hate wasn't the intention of the forum, and we have moderators because of this.
The problem is that, while a few Brazilians have only a vague grasp of English, the community has overblown this to a ridiculous extent. So much so that every time I have been in queue with anyone that has a remote semblance of the letters BR in their name. (True Story: I was in an arranged with my friend BRevity, and we got dodged...4 straight times)
This isn't good for the integrity of the community, it isn't good for the people on the receiving end of this prejudice, and it isn't good for Riot's image. You need to take a more active role in enforcing the well-being of the community.
EDIT: Can't say I wasn't expecting the downvotes...but somebody besides me and Syl3z has to agree with this.
EDIT: Well, this thread will be closed soon. I thank the people who aren't bigots, and wish for a red post right about now.