It's hard to argue too much with state sovereignty as a policy, as long as people think of gay marriage as an "issue" instead of a "basic right." Still meaningless in Texas as the state's DOMA law says "state and its constituent bodies do not recognize any marriage between two people of the same gender," pretty basic language, but yes, it's a fight that needs to happen (and I hope it happens during a period of Democrat-controlled government, not that the Dems have been consistantly helpful in this battle).