You're confused. Brazil speaks Portuguese, not Spanish. The Portuguese word mestiço is not synonymous with the Spanish word mestizo. A mestiço is simply a mixed-race person regardless of what the mix is. As you can see, the winner of the Miss Nikkei Brazil pageant IS a mestiça, since she has admixture. The Portuguese word for mestizo is caboclo, which Brazil doesn't have much of in the first place. Also, most Brazilian caboclos are mixed with Portuguese and Amerindian, not Spanish. The Spanish influence in Brazil was not as significant as the African, Portuguese, or Italian influences. The majority of Brazilians do not possess Spanish ancestry.