I tend to think that if the GOP pushes to ban "domestic partnerships" in addition to homo marriage, they will lose the fight over the mid-term.
Preserve the sanctity of marriage, but let the homos inter-twine their assets and visit their aids-ridden "partner" without family permission.
I think this particular law goes further than necessary to protect marriage.
1. The fact that “advocates say” something doesn’t make it accurate.
2. Anyone can establish joint assets, hospital visitation, inheritance, etc., with others, through standard contracts and powers of attorney. They do not need any sort of official recognition of “sex-partnership.”