I have no problem with some other term being come up with that would be for a same-sex couple that gives them the same rights and stuff as though it was marriage, the issue is a matter between them and God, but they don't have to call it marriage.
Why not? If inter-racial couples can, why not same-sex couples? Both redefine marriage, have faced heavy opposition from Christians, and have been accused of leading to worse things (ie. "we can't allow inter-racial marriage, because then gay marriage is next").