Barça is the best team and with almost only white players ,there are only one bi-racial is eric abidal and guess what he is french !
Barca are probably still the best team but they had a terrible year and came out with a single trophy (Copa Del Ray). Anyways, the majority of their best players are ethnic Spanish (Catalans mostly) but they are an exception in the football world. Most football teams aren't like that. However, things will probably change with Barca once Xavi, Iniesta and Puyol retire. They will still have Fabregas, Messi, Pique, etc. but they might not have as much top Catalan talent unless their youth teams keep pumping out top players.