Marriage is now a government benefit distribution scheme. Conservative Christians asked for it to be so, desiring tax breaks, insurance discounts, and other government rewards for something they were already committed to doing for religious reasons. Marriage was sold off to government decades ago - cheap.
Unfortunately, it was only a matter of time before every grifter in town wanted in on the scam. The word "marriage" (much like the word "gay", itself) is now destined for destruction. The concept, however, should survive relatively unscathed.