Walker's ruling was, of course, upheld by the Ninth Circuit Court of Appeals, the most left-wing circuit court in the country. Like Walker and most other leftwing justices, the Ninth Circuit rules according their ideology, not according to the law and certainly not according to the will of voters.
The left uses left-wing judges and courts to achieve its ends. They uphold votes that support the left, and overturn those that don't.
But it gets worse.
The left-wing governor and attorney general of California chose not to defend Proposition 8 before the Supreme Court, though it was their legal duty to do so. "Social justice" is the supreme left-wing value; honor and integrity are redefined to mean that which promotes social justice, as the left defines the term.
Consequently, there was no one with legal standing to defend the vote of a substantial majority of Californians before the Supreme Court. And so, the Supreme Court ruled that since no one but the State of California had the legal standing to defend the voters of California, neither the Supreme Court nor the Ninth District Court of Appeals could rule on Judge Walker's decision. And so one leftist judge's ruling was allowed to remain in force.
As a result, another vote was overturned and the most important social institution was radically redefined. It was all done by a left-wing judge, a left-wing governor of California and four left-wing justices plus one swing vote on the U.S. Supreme Court.
In America we don't need the army to overthrow elections. We have left-wing judges to do that.