“There are so many people outside of your family. Go marry/have sex with one of them, instead. It creates friendships between families.” There are plenty of people within one’s own race, too, but that is no reason to ban interracial marriage. I have many friends outside of my family to whom I’m neither married nor married to a relative of theirs. On the other hand, don't we all know unrelated married couples who actually drive their relatives apart from each other?