It’s about damn time. I don’t trust government schools to teach any subject well, not math, not science, and certainly not “social studies.” The textbooks are highly suspect, but how many parents read them?
I doubt very many parents read the textbooks, at all.
How many parents read the textbooks? Virtually none, of course. In any event, most of the parents wouldn’t recognize the rubbish if they did read them because they were taught versions of the same thing, or they wouldn’t care.