Marriage is not defined in the federal Constitution at all; it's a matter for the states. And applying the Fourteenth Amendment to the equality of men and women and their relationship in marriage is totally different than redefining marriage. Here is the overreach of the judiciary. This, if allowed to stand without any congressional approval, without any kind of enabling legislation, is what Jefferson warned us about. That's judicial tyranny.
There's this saying: in an all-blue world, colour doesn't exist. . . If something seems strange, you question it; but if the outside world is too distant to use as a comparison then nothing seems strange.