That was the reasoning that a judge used in Loving v. Virginia to uphold anti-miscegenation laws. It seems silly now that people opposed interracial marriage for religious reasons, but that was the truth (in addition to opposing it because they were uncomfortable with/repulsed by the idea, I would imagine, which falls under the "it's not natural" argument), and that was only 40 years ago! And it's astonishing how almost identical reasons are being used to oppose same-sex marriage. I would bet that in 40 years, the "marriage is to unite the unique, special halves of humanity, man and woman" arguments against same-sex marriage, which are similarly based in religion and ignorance whether people want to admit it or not, will sound as silly as the "God put the races on separate continents for a reason" arguments against interracial marriage seem now.Almighty God created the races white, black, yellow, malay and red, and he placed them on separate continents. And but for the interference with his arrangement there would be no cause for such marriages. The fact that he separated the races shows that he did not intend for the races to mix.