Autodidact
Intentionally Blank
The point is the CA Constitution is silent on the issue. When the constitution is silent on an issue you make a law via the legislature or referendum. Judges are not supposed to "write in" imaginary language to the supreme law of the state. If all a constitution is good for is one's opinion of how it should be, then use it for toilet paper. That is all it is good for.
The holding is that denying marriage to gay people violates this provision of the California constitution:
(b) A citizen or class of citizens may not be granted privileges or immunities not granted on the same terms to all citizens.
What is your argument that it does not?