Okay here is my opinion sorry if it sounds mean but I try and help by being honest. It sounds like you don't have a problem with her ns belies, but rather the fact that she is showing it. And if you don't disagree with ns thoughts why do care if she shows it. It sounds like you are either a racist in denial or are pussy whipped and don't want to disagree with your girlfriend. If its the first thing you need to figure out what are your reservations about being a ns (wich should be obvious considering thinking one race is better then another is a result of low self esteem and trying to make up for it by giving yourself "self importance") and if you agree with that belief system great don't worry about it. If it is the second thing you better tell her what you really feel before you get married because after you have been with her for awhile your not going to want her opinions to be more important then yours. Also why don't you try living to gather before making any huge decision. If you still live with your parents you probably don't have a good idea of what your life will be like outside of their care. Once you are on your own for awhile shit changes. On a different note have you ever considered that you being Christian is just based on being raised in a Christian home, where would you be if you were raised in a home with a different religion.