Loving v. Virginia (1967)
Marriage is one of the "basic civil rights of man," fundamental to our very existence and survival.... To deny this fundamental freedom on so unsupportable a basis as the racial classifications embodied in these statutes, classifications so directly subversive of the principle of equality at the heart of the Fourteenth Amendment, is surely to deprive all the State's citizens of liberty without due process of law. The Fourteenth Amendment requires that the freedom of choice to marry not be restricted by invidious racial discrimination. Under our Constitution, the freedom to marry, or not marry, a person of another race resides with the individual and cannot be infringed by the State.
Now, you can look at this case, with it's precedents, in 1 of 2 ways. Either the SCOTUS was wrong in the first place and just racist that was later corrected by this case, or you can look at it as a case much like the 2nd Amendment is today, where it was something that they didn't want to look at until they absolutely had to, then acquiesced that it is indeed a fundamental right of mankind.