NONE of those realms listed are Brazilian, try again hater.
1- Not looking close enough clearly.
2 - Wrong.
3 - I would LOVE to know which server you play because you are talking out of your ass here.
http://www.wowprogress.com/realms/rank/us
Overall PVE US realm list.
NUMBER 5 (Azralon) is 100% BR, and what is the proportion between BR and US players again? perhaps 25 to 1(maybe more? no idea)? not to mention they playing a foriegn game.... not to mention the BR players spread on top US guilds.... we didn't had BR servers until late 2011, MANY veterans never left their original US server to migrate, so please, get a clue dude.
BR have multi r1 glads and multi top dragon slayer-guilds.
I could go on and on about this, countering every argument but it's not worth the effort. to any half-brained-non-biased human being this should be obvious already.