It just depends on what you call a losing issue. This nation is unlike ANY in all of recorded history, a promise fulfilled. And if you think it is because of what flesh beings are responsible in doing of themselves, then you have NO clue what is at stake. But as history has recorded flesh beings always did seem to believe they just had to do things their way. And as it is Written there is nothing 'new' under the sun.
Please explain to me where the Feds have any rights whatsoever on this issue?
How do you plan to reconcile this with the 14th Amendment?
Let me propose a hypothetical. Blacks should not be allowed to marry whites. Now that would have passed in the 50s but is it right?