When I got involved in the Yes-on-8 campaign they assured us that reversing prop 8 would be much more difficult that getting it into law. As an “amendment” to the constitution prop 8 needed a simple majority to pass. Removing it from the state constitution would be considered a “revision” and would require a 2/3 majority in both houses of the legislature and then a majority popular vote.
Right now republican have more than 1/2 of the seats in the Legislature.
At least that is what we were told. I haven't seen this info repeated in the press anywhere yet so I'm a little worried.
Correction, Republicans have a little more than 1/3 of the seats in the Legislature, still enough to keep prop 8 in the constitution.