"Civil Marriage Is a Civil Right"

I saw a useful bumper sticker today: "Civil Marriage Is a Civil Right".

Close, but good enough for a bumper sticker's necessarily-brief approach to things...

To be more precise: As a govt defines civil marriage (its [only] purview]-- from whatever metaphysical views it wants to use-- it can establish and extend its version of marriage in any way that it wants.

The interesting questions going forward:
1.) How much force will a given govt use to enforce their particular metaphysical views and their definition of civil marriage?
2.) What will the Church do with civil marriage and sacred Marriage when the definitions are no longer conflated by culture, majority rule, and/or the judiciary?