Talk about false choices, this headline has it.
false statement from you.
You obviously did not read it and did not want to because this bothers you.
Get over being bothered by the possibilities.
I myself have said that the same arguments in support of gay marriage can be used to support polygamy.
But the arguments against gay marriage can be used to promote religious sectarianism.
Deal with it.
There ought to be religious marriage and secular marriage, both legally recognized. There are churches galore that would allow you to marry two or three people just to show how progressive and accepting they are, so there should be no problem finding a hireling to perform the ritual, for a price, of course.