Seeing as your thread was closed I wil respond directly.
I think that there is absolutley nothing morally wrong with interracial reltionships provided both parties come from a similar cultural background. When two people of different cultures get together I think it can be very difficult for them to relate to each other and have a healthy relationship (without one of them adopting the others' culture to an extent). Also, if everyone decided against same-race reltionships then in a couple of million years every child born will look exactly the same (or at least very similar) due to having genes from all over the world. Maybe I am wrong about that last bit but that seems the most logical outcome.
Hope my opinion is valued =]