when your guy troll about "export" women, it is related to nationality only, I don't care about the origin etnicity of such women.
So I can say that most of Vietnamese brders we exported to Taiwan first and late on to Korea, such briders are mostly Hua in etnicity, Minh Huong people from western of Mekong delta. So why the population of Hua people in Vietnam is reduced in recently.
It is reported in Vietnamese wiki
"Đây là một trong các dân tộc tại Việt Nam có dân số giảm trong 10 năm (1999-2009) theo số liệu của Tổng cục Thống kê Việt Nam.". You can use google to translate it.
so when chinese woman marry to foreigner, does it mean China "export" them ?
Chinese women marry to Indian,
sorry, I m a newbie, can not past a link.