TUESDAY Oct. 5 Having already made Orange County their own, Latinos seem on the verge of dominating the state—until yet another study is released that shows a large decline in the Latino birthrate. This comes as a shock to most white people like me whose view of Latinos, based on Shakira, Santana and Ricky Martin videos/soft drink commercials, is that they are a passionate and perspirous people who enjoy clinging clothes, dancing in traffic and simulated sex . . . hey! There's your problem!