Unintended Consequences of China's One Child Policy

Liberals love abortion, embracing it as a woman's "choice" and a way for poor women to get out of poverty. And since they see abortion as a universal good, they tend to ignore what abortion has done in places like China, where girls are so despised that the sex imbalance will have devastating consequences in the 21st century. How do feminists justify their support of abortion in places such as this?