China has more men than women because female babies were "allowed" to die, were actively abandoned with death as a real possibility, or were abandoned, found, and taken to orphanages from which many were adopted by foreign families. My niece is a beautiful Chinese-American ten-year-old, born (probably - we don't know her exact date of birth) in late September of 2001. My brother and sister-in-law were caught in the unexpected turmoil and red-tape of trying to complete an international adoption in the wake of the 9/11 bombings and the radically intensified security that immediately followed. Fortunately for our family, they were able to complete the process and we are all blessed to have her in our midst.
Sex selection based on traditional, culturally-based desires leads to heartache (and worse) for families and children.