Which classes of people are discriminated against under traditional marriage laws? Under current law, any eligible man can marry any eligible woman. All are treated equally at present. What class of people are discriminated against?
The judge redefined the forms of "marriage" that the state must recognize. Where it used to be that the state would recognize only a union of one man and one woman, this judge says the "one of each sex" limitation is unconstitutional, because marriage is a fundamental right. It's arbitrary line drawing (and at some point, all law is just that, although it claims to have some deeper justification for imposing its will).
Anyway, not to say that somebody can't transmogrify the decision into a "protected class / civil rights" framework. My remarks above suggest that, with the protected class being those who desire to enter into homosexual "marriage." But that ends up being a tautology, they get protected status by dint of the action they want the state to endorse. The decision doesn't turn on any sort of protected class. This judge says everybody is entitled to homosexual marriage, and everybody is entitled to heterosexual marriage.
Somebody on here posted that they won't abide by the judge's rule. The "marriages", aren't, period. I'm of the same mind, plus I find that the court is flat out illegitimate. I'm not bound to follow an irrational person's rulings.
Marriage and family are a fundamental aspect of stable society. The judge is tinkering with dynamite.