South Africa
Interracial marriages. The US Supreme Court declared these laws unconstitutional in Loving v. Virginia.
*The opinion comments previously here have been moved to the discussion section.
No. Southern states cannot refuse to recognize interracial marriage. It has been legal in all the United States since the 1967 Supreme Court decision that deemed anti-miscegenation laws unconstitutional. See related link.
Around 1958 anti-miscegenation laws were overturned through Virginia vs Loving. June 14th is a day to recognize biracial black/white marriages.
Loving v. Virginia, 388 US 1 (1967)
The Lovings were an interracial married couple (Mildred and Richard Perry Loving) who were charged for cohabitating in the state of Virginia, a state that outlawed interracial marriage (They were married in DC before returning to Virginia). Their marriage license was actually used against them in the case that went all the way to the US Supreme Court.
Then in 1967, 8 years after their arrest, the Court overturned the law.
The whole objection to miscegenation, the belief that it is somehow immoral for people of different ethnic groups to marry, reproduce, or fool around, has no legitimate basis. It is just a prejudice based on xenophobia. So, movies show couples of mixed ethnicity because, in the first place, this is what the world is like (and let us not forget, even Strom Thurmond, who warned us about Negroes getting into our swimming pools, secretly fathered a daughter with a black woman) and in the second place, it is what the world should be like. When people form friendships or even romantic relationships with people of other ethnic groups this shows that we as a society are overcoming racism. We are all human beings, believe it or not. We belong to one species. Miscegenation is an imaginary offense.
We are all the byproduct of some type of interracial marriage or sex, at least. When they say that interracial is the new thing, I believe it, it doesn't matter who you are or what you are as long as you love each other. Some old heads might believe that doves should stick with doves and black birds with black birds but that is the old thinking. just like same-sex relations, everyone one has the right to love. And because their are some many other hot guys (if your a heterosexual guy, girls) in the world than that are just in your race.
If it is, it's mostly in the segregated South.