The difference between interracial marriage and homosexual "marriage."

This man, Francis J. Beckwith, has written an article on the legal difference between homosexual "marriage" and interracial marriage.

"...the fact that a man and a woman from different races were biologically and metaphysically capable of marrying each other, building families, and living among the general population is precisely why the race purists wanted to forbid such unions by the force of law."

Article here.