Ms. Liebau reminds me of that other great nannystater -- Mr. Bloomberg of the People's Socialist Republic of NYC.
SCROTUS, if it values the 10th Amendment, needs to do two things: one is to uphold Prop 8 and the other is to strike down DOMA. Both issues are state issues, not federal issues. As such, when the people of CA voted for Prop 8, it was within their jurisdiction to do so. The 9th Circus had no constitutional authorization to even hear the case, per the 10th Amendment. On the other hand, when Congress and Billy Wack passed and signed DOMA into federal law, they violated the US Constitution.
So easy a caveman can do it.