My missus has family in the UK, and when we over last time she went with them to a local Filipino gathering, and came back a little disheartened at some of the attitude towards the British that was displayed there. When one of the people told her, it's ok stick with your man, he's wealthy, she tried to explain about love and was pretty much laughed at.
This I think is becoming a common problem, my wife went to a gathering last year and the first question she gets asked is where we live so they can guage what type of house we have ,then asked how much money I'm earning!
It doesn't help with the attutude displayed by some blokes who bring their wives / gf's across either. We know of one girl who is kept as a near prisoner in their house because of the husband. So its understandable that a resentment can form. After all they have come over to a strange country where they have a lot more restrictions on them in many areas of their life. From traveling about (my wife still won't go on a bus on her own), to food, TV, lack of family, to trying to find new friends that won't cause trouble in the future.
As for us going over there its only natural that we would encounter varying forms of racism. Lets face it, white or black or whatever as a forgienor in what is basically a under developed country we are going to be viewed as a threat / with suspicion. No real difference than going on holiday, you're always going to get done over to some degree by the locals.
As for the problems of being in a mixed relationship and being over there I've never let it bother me. I try to mix with family, friends etc as best I can. Anyone outside of that just isn't that important to me. Why would they be. I've got no impact on them and they have none on me. If however what they say does impact on our lives then obviously it then does become an issuse and can hopefully be dealt with, if not sod em. THeir not willing to put the effort in to get to know me so they can carry on in their own narrow minded, mis guided ways.