Honestly, if the state is willing to call two men or two women shacking up a marriage, what possible restrictions can you place on any marriage combinations? Its the proverbial slippery slope.
Polygamy has a long history and is still practiced throughout the world. There is certainly much more precendent for it than two dudes calling themselves a married couple.
I’m not suggesting that I support any of this, but on what basis could you stop polygamy if you allow homosexuals and all the other “sexuals” to redefine marriage.
At least polygamy is Biblical. Homosexual marriage (or homosexual relations for that matter) are not!