I just finished reading the entire decision and one thing struck me very early on:
The Chief Justice may have made any ballot measure attempting to reverse the decision impermissible !!!!
On Page 6:
As discussed below, upon review of the numerous California decisions that have examined the underlying bases and significance of the constitutional right to marry (and that illuminate why this right has been recognized as one of the basic, inalienable civil rights guaranteed to an individual by the California Constitution), we conclude that, under this state’s Constitution, the constitutionally based right to marry properly must be understood to encompass the core set of basic substantive legal rights and attributes traditionally associated with marriage that are so integral to an individual’s liberty and personal autonomy that they may not be eliminated or abrogated by the Legislature or by the electorate through the statutory initiative process.
(bolding mine)
I am not a lawyer, however, I think we could fight the ballot initiative on that ground as well as the whole issue not being a single issue which is required of ballot measures.
As the decision makes very clear there are many areas of law affected by the marriage statutes which could be put into constitutional conflict with each other.
Let's fight to keep the anti-marriage measure off the ballot with everything we've got.