[republicofdavis]

Prop 22 was not an amendment to the Constitution, it added a statute to the Family Code. Thus (although in reality it is not) a judge could find it unconstitutional

[Kretek]

Thanks. I got the two efforts conflated in my mind and thought that a Constitutional amendment had been passed.

As statute, even one passed by the voters themselves and not the Legislature, it can be held unconstitutional. An amendment would not suffer that same vulnerability.