In terms of personality, being friends with, working with, etc, it really doesn't matter that much. I believe the "macro" aspect of race matters as in racial homogeneous countries being safer, more cohesive, etc, but the "micro" aspect doesn't really matter that much; I could work in a group with one Asian and one black, and if everyone speaks one language in common, has the same ideal and is competent, there'll be no problem at all.
But I voted white simply because whites are the best race on average. Both in physical appearance and in historical accomplishments. And I'm white myself so I ideally wanted a white partner, I don't think racemixing is something positive at all.