But I think the root causes here are more cultural. When I was coming up decades and decades ago we valued highly educated people, Americas rocket scientists and such. Over time, however, people started thinking education wasn't masculine, that it wasn't cool. Then social media hit the scenes and people started amplifying some of our worst instincts -- anti vaccine, anti intellectualism, pro conspiracy. What used to be your fringe neighbor became someone who could influence online.
Add the Vietnam, the gulf war, 9/11, Iraq and Afghanistan, and you've got generational trauma of sending generations of youth off to fight. That interrupts a lot of education and when those folks become parents they have different values towards education.
Plus, as you describe, schools are a commons. We systematically under pay and under value teachers, while over paying and over valuing admin.
And there is an anti collectivist culture in the US now. In labor and in community, there's much less "let me give up my time for the community" and much more "how can I get mine" mindset.
I think it's really complicated and a lot of different factors play a part. I don't think there's a single root cause, and it's going to take a while to unwind.