If what they didn't want was "government in my bedroom," the Constitutional way to go about it is the way it was done in the state of Georgia, the state that gave us the Bowers vs. Hardwick decision that Lawrence overturned; it's sodomy statute was repealed, well before Lawrence.
Santorum was on the money regarding Lawrence, and caught hell for telling the truth before the verdict came down; this was designed for the purpose of clearing the way for a right to same-sex marriage, with potentially other outlawed forms of "marriage" (polygamy, incestuous, cross-species, even) to follow.
Is that what YOU prefer?
Freedom from tyranny. What do you prefer?