The issue is same sex marriage which is illegal. That is the law and if you don't like it, then by all means repeal it. Attempting to bypass the law by claiming that your crusade is a "rights issue" is nonsense. This has nothing to do with your persona, it has to do with your behaviour.
"Behaviour" as in a person who uses drugs. They have a choice to make and even the arguement that they have an "addictive personality" or are genetically predisposed to be a drug user won't save them from companies that screen their employees for drugs and then deny them a job because of their "behaviour". Is it right? Perhaps not. But, because it is not a "rights issue", it needs to be addressed through our legistlative process and not through an "activist court". The same with homosexuality and "gay marriage".
A "rights issue" is different. It is something that you have no control over. Age, ethnicity, race and gender would be considered a legitimate "rights issue".
A legitimate violation of someone's right's might therefore might be "age discrimination" and yet I not seen it addressed. At 18 years old I can give my life for my country fighting in Iraq but when I come home I can't have a beer because the drinking age is 21. That is discrimination.