As the Supreme Court justices take up a celebrated case about same-sex marriage, the legal question before them comes down to . . . lust and tyranny?

This is the exotic view expressed by Rep. Marsha Blackburn (R-Tenn.), who joined an amicus curiae brief from “Leaders of the 2012 Republican National Convention Committee on the Platform,” of which Blackburn was a co-chairman. Among the many friend-of-the-court briefs filed in the case, Blackburn’s effort, submitted with conservative lawyer James Bopp Jr., gets high marks for creativity.

The “Republican Party’s advocacy for traditional marriage is not about animus toward a particular subset of Americans based on sexual preferences,” they wrote.  The party, rather, believes that undermining the traditional family means “encouraging the growth of government and removing a key bulwark against government, particularly tyrannical and totalitarian ones.”

But if same-sex marriage is to put us on a path to totalitarianism, it promises to be a most interesting trip. Asserting that only 0.5 percent of men in gay couples are faithful to each other, Blackburn and Bopp also warn of the dangers of men losing “the socializing effect that women bring in a marriage.” They quote at length from a 1986 book, Men and Marriage, by conservative thinker George Gilder:  “. . . women transform male lust into love; channel male wanderlust into jobs, homes and families; link men to specific children; rear children into citizens; change hunters into fathers; divert male will to power into a drive to create. Women conceive the future that men tend to flee . . .”

“Thus,” Blackburn, Bopp, et alia, conclude, “marriage helps to focus a man’s energy and aggression to socially desirable ends.”

Let that be a warning to you, Justice Kennedy. Today you’re a swing vote. Tomorrow? A swinger.