Ultimately, the social engineering aspect of things will backfire on those states that show themselves indifferent to equal rights for women (as well as for gays), and position themselves as anti-education and anti-science. These states will experience an emigration of the educated, upwardly mobile strata of society. A de facto partition of the Union into an industrialized, educated, globally engaged North and a backward, inward looking, South which can hope, at best, to be a cheap labour export platform for Northern (and Chinese) goods.
Good-bye, and good luck. (Or to paraphrase Douglas Adams: So long, and thanks or all the laughs)