expectations for mixed baby?

Hubby's family was eating over and of course the baby came up in the conversation. They started talking about looks (he is Mexican I am Caucasian) and how the baby "better come out with light blue eyes or she'll just look Mexican". I'm not sure if it's the hormones or what but I got so upset!!! This baby will be a beautiful blend of both of us and I hadn't even worried about what she will look like. 
They kept making comments about how if she doesn't look white to stop having babies because they will look odd!!! I'm in tears right now. I cannot believe they would say that to us when all we want is a healthy baby! 
How do I deal with this? I honestly don't want to be around them anymore since they all seem to agree with their comments! I don't want my baby to EVER hear those comments from her own family.