Polyamory, polygamy, or whatever you want to call it, increases the number of naked bodies you're legitimately going to be allowed to see and touch, whatever your sex or sexual orientation. The increased population of sexual partners is going to increase your chances for getting laid. It's simple math.
The study examined the health outcomes of people who are divorced, as well as unmarried, cohabiting couples. Published in the American Journal of Public Health, the research has implications for younger generations, as more people pursue unconventional relationships and divorce continues to be an option.
The Christian Post has such an article: "Why Two? The Question Gay Activists Can Not Answer." The author, Michael Brown, wrote a book on how Christians will reverse the course of the "gay revolution." No doubt he believes the Second Coming is just around the corner as well. Good luck waiting for either.