For years, those working to protect the definition of marriage have said that polygamy would soon follow gaymarriage. Now it begins. People react as if it is such an extreme view, but there is no possible way to justify gaymarriage without justifying trimarriage. If gender is arbitrary, why not number?
The definition of marriage is based on a natural fact: a child can be conceived only by one man and one woman. Therefore, marriage is a legal relationship between one man and one woman, regardless of whether the man and woman in question can actually conceive a child.
There is nothing even like this definition that would include gaymarriage. If someone says it is a legal relationship between two adults, the only reasonable question is why? Why partnerships but not fellowships?