Again, this excludes both the political climate and the republican agenda.
In a town or city with a republican majority, these laws would enable parents to exclude any textbooks deemed “not appropriate” from children curriculum.
This would be taking control form specifically educated and vetted professionals and giving it to a group who are as a whole opinionated and uneducated as to how to transfer knowledge.
Worse yet, the most opinionated, who are strongly correlated with the worst educated or most intellectually malevolent, are the ones who would wind up in control, regardless of the left/right wing bias.
Especially when it gets politicized, it would not be long before control by the parents with veto power for any parent in the district, would result in it being literally worse to have school than to disband it and abandon schools altogether.
Come on, degrees in Education are a dime a dozen. They do not give you a specific education in the subjects you will be expected to teach, unlike an actual subject-specific major. How that can be called "professional" is beyond me.
Nevertheless, it is VERY far above the uninformed and often willfully ignorant rantings of parents, and there is some serious academic and real-world work done to improve teaching & curriculum.
While parental input should certainly be considered, as a whole, parents haven't got even the first clue of what is needed for a sound education suitable for a highly complex society. Their expressed preferences are to shut down things they don't like, ignoring all consequences. And those shut-it-down impulses come from all sides.
To reduce schooling to the lowest & loudest common denominator of parental preferences would be a disaster on the scale of societal collapse.
We have the most complex society ever in the history of at least the solar system - and it is barely runnable as things are. The only way out of this will be to maximize the intellectual capabilities and scope of every generation.
Increasing qualifications and especially requiring education in your teaching subject? Absolutely. But substituting a push for that with turning it into a "Parent's Choice Greatest Hits"? Nope, it'd likely be better to just shut it down.
Is this something US specific?
I recall that in many countries in Europe, to be certified as a high school teacher, one has to have a degree related to the area of teaching, plus a master's degree in teaching.
"If you knew what we were doing, you'd try to stop us" is not a good counterargument.
All this is, is transparency. What parents do with this knowledge is up to the parents. Should parents not be made aware of what their children are being taught?
That these people hold disagreeable or even wrong opinions doesn't make it not transparency