Sorry, one more thing: It’s not big government coming from the left, it’s “big government” used for the purpose of upholding basic morality that has held society together. If that’s necessary, so be it. Better to add another amendement than to let society slowly fall apart for the sake of the “it’s the states’ right” crowd.
ALso some states would not likely ban, Massachusetts for example. With an amendment they’d have to.
I don’t how, in a secular society, you could regulate or legislate morality.