Can sodomy produce a child? Enough said.
The guy referred to in the article has the most solid answer, simply that "marriage" means a man and a woman. What the homos want isn't the right to marry, they want the right to redefine what marriage is. That's why it's vitally important to have a pre-PC dictionary, so when they try to pull up some online dictionary definition of "a union between two people", you can slam the book on them, so to speak.
Scouts Out! Cavalry Ho!