BTW, when people talk of "traditional marriage", they need to be more specific which version of traditional marriage they are referring to.
The one from 1691, when only whites could marry?
The one from 1724, when blacks could get married? (with slave owner permission)
The one before 1769, when the wife was property of the husband?
The one before 1899, when polygamy was legal?
The one before 1848, when the wife had no property rights whatsoever?
The one before 1965, when using contraception was not guaranteed to be legal?
The one before 1967, when interracial couples could not marry?
The one before 1975, when the wife could not have her own credit rating?
The one before 1981, when a husband had total control of joint property?
The one before 1993, when a husband could not be charged with rape?