And yet the "three great religions" practiced by the vast majority of the people who inhabit your biosphere have for their entire collective history said that this same creator says that such a marriage is not a marriage.
Homo sapiens is estimated to be at least 100,000 years old, and the oldest of these three religions is maybe 5,000 years old, so not quite our entire collective history, unless you think the Creation Museum in Kentucky has it right.
Depending on your perspective, you may or may not think Scalia's argument is appropriate to the case today. But it's still a valid principle of democracy that unelected folks don't get to unilaterally decide law without precedent.
Not so unilateral
You might have mail.