southnorth, raising this topic online is not wise. No everyone knows what
kind of ppl you are and what kind of purpose your question is for.
if I put your intention right, I give you my understanding:
1. good chinese girl(s) taken by whites (or even other nationalities) is a
big loss, from the chinese point of view
2. bad chinese girl(s) "lan4" with whites are loss-face
generally speaking, I am not adverse to pure relationship, which is a
cheerful thing but might encouter more difficulties than you could imagine.
Best wishes!