Did the California Supreme Court act properly in overturning the Same Sex Marruage Ban?

Two sides of the argugment. One side says:

"Andy’s last paragraph proves the point of those who charge the California Supreme Court with one of the most egregious, arrogant and far-reaching judicial actions to date. It is not up to a court to determine that “existing rights accorded to gay couples aren’t enough.” It is not in a judge’s job description to ensure gay couples “equal respect and protection.” Chief executives and legislators can fight for their beliefs and to change society. But under America’s separation of powers doctrine, the whole point of a judicial branch is for judges to put aside personal opinions and determine whether laws are constitutional. Period."

which is - of course - exactly what the GOP Chied Justice did.

Did the California Supreme Court act properly in overturning the ...
Atlanta Journal Constitution - GA