Letters to the "Style" section complain about an article last week about two Asian-American sisters who've written the book on how to raise high-achieving, hard-working, "Asian"-like children. The letter-writers don't like the stereotypes inherent in the sisters' project and don't think being a "model minority" ought to be anyone's goal. They have a point. But how exactly is Top of the Class: How Asian Parents Raise High Achievers - and How You Can Too different from French Women Don't Get Fat: The Secret of Eating For Pleasure? Where were the rallying cries of French-Americans sick of being stereotyped as thin and chic?