It will take much more than rescinding Obergefell, which was just the final blow in a long, sustained attack in destroying marriage. Before that, Windsor will need to be dealt with, and then Lawrence which made the modern homo-Nazis march possible. Then before that Romer would need to be reversed, allowing states and cities to prohibit “anti-discrimination laws” against homosexuals and other perverts. Then Griswold would have to be dealt with, the case which effectively severed the link between sex and procreation.