As Governor, Arnold did put a series of reforms as ballot initiatives in 2005 (propositions #74, #75, #76) regarding teacher tenure, union dues for political propositions, budget spending limits, and other topics.
These were all rejected, as they did not reach the required 2/3 majority. But it’s not because Arnold didn’t make the effort.
Not everything Arnold did was bad.
But he was far from being a movement conservative.
Like Jerry Brown, Arnold is a big supporter of the Globull warming agenda.