A woman's status in this country was examined by SCOTUS and determined that women are not 2nd class citizens, but are instead eligible for exactly the same rights as men, including in a marriage.
Did marriage and America collapse when that happened? No.
Well, SCOTUS is now examining issues regarding gays....and several states have already designated homosexuals as a protected class. Several states have already legalized SSM. Better pull on your big girl panties.....SSM will become the law of the land.