The 'definition' according to who? We invented marriage. It is what we say it is. And its meaning has adapted to service us.
Marriage used to mean a subordinate relationship where a woman served a man. We changed that, making it a relationship of equals.
Marriage used to be only a white man with a white woman, or a black man with a black woman. We changed that, eliminating any racial boundaries.
And marriage used to be only a man and a woman. We changed that, so it can be a man and a woman. Or a man and a man. Or a woman and a woman.
The definition of marriage is what we say it is, as marriage is a social and legal construct that we invented, maintain and enforce. For a previous incarnation to maintain exclusivity, there has to be a valid reason.
And there is none in excluding same sex couples.
Nope, reject your entire premise.
Oh, I get that. But what you lack in your rejection is a rational or legal basis. Which tends to undercut the validty of your argument in any context.
It has always been defined throughout history and all cultures as a union between a man and a woman. Laws forbidding interracial marriage were unjust per our constitution, because marriage was not defined as a union of two people of the opposite sex but the same race. Silliness!
Except that it hasn't. Sometimes its between one man and many women. Sometimes its between children. Sometimes its between only white women and white men. Sometimes it involved the consent of those being married. Sometimes people were forced into arranged marriages.
Marriage isn't this unchanging absolute you imagine it is. But adapted to the needs of society. As society defines it. Exactly as we do now.
You're picking your personal favorite. And then insisting that it can be the only 'true' definition of marriage. Apparently because you say so. As you've provided no rational reason why it must exclude same sex couples.
That's just a plain old appeal to authority fallacy. And a begging the question fallacy....as your justification for your definitions existence is that your definition exists.
That's an argument with no corners. You need a rational reason *why* same sex couples must be excluded. Not simply a history of pointless discrimination.
Clearly the definition of marriage is what we say it is. Thank you for coming around to the fact that the USSC altered the definition.
No more so then when they overturned interracial marriage bans.
Marriage is a social construct that we define to service us.
We don't serve it. And when laws are created that that run contrary to constitutional guarantees, the judiciary has an obligation to put the constitution above the law.
Which is what Obergefell was all about.