This doesn't surprise me at all. From what I can tell, California's education system has moved from "equality" (which I would define as providing similar opportunities to all the kids) to focusing on "equity" (which I think they define as dictating the same outcome for all kids).
To get an idea of how off the rails this has gotten, go read up on their statements trying to justify banning high school calculus. They explicitly (in the abstract / introduction of their plan) reject the idea that some kids are more talented at some things than other kids, so if you can compute a derivative by 12th grade, it's due to racial discrimination benefiting you or something. On a related note, instead of writing some Rust code, today, I think I'll go paint a Banksy or something after I finish my coffee.
That plan caused a lot of uproar and was blocked before being implemented.
Anecdotally, when I asked our local public school for a copy of the curriculum, the teacher said they just teach common core. If you go to the common core website, somewhere towards the top it makes it clear that it is not a curriculum, and just meant to be a lower bar that gets supplemented.
Personally, I think all funding in California education (other than terminal levels like 4 year bachelors and up) should be a function of the percentage of students that succeed at the next step.
If a local district starts losing funding, then it would have to close / shrink schools, and people from outside the educational system would be allowed to establish independent (secular) charter schools within the district.
Those schools would also not be paid unless the students do well in the next phase of their education. This solves the problem of trying to use this as a curriculum back door for climate denial and Islamophobia (or whatever the red states are pushing).