My reading of "purposefully sabotaged" is that whoever was in charge of the schools decided to make them worse for political reasons, like not believing in public education. I'm not aware of any dems doing this. I certainly agree that they have accidentally sabotaged schools through incompetence or corruption, but that's a much harder problem to fix than "just don't vote for people that don't believe in public education".
My point was that elections here are almost always about improving public schools, but the government has not been able to over the course of decades. Call their stewardship what you will. Purposeful sabotage, accidental sabotage, whatever, doesn't really matter to me. What matter is that the government is not capable of enacting the voters will of having good public schools, which is why charters are so popular.
It's similar problem to drugs. We have populist solutions that don't work and solutions that work but will make you unelectable. Guess what solutions will get implemented? Also it doesn't matter how much money is spent per child if almost all of it is spent on turning school into day prisons for children. Students from poor families need more resources to be able to achieve same as children who have richer families. Family support goes a long way. This includes material support and cultural one. Parents often don't know how or have resources to help their children. Easiest solution would be for schools/government to help their parents so their children could rely on their family for support. Helping whole family is not only good for children but also to whole community. It was shown that hungry students have lower achievements than feed ones but we still pretend like only thing that matters is personal learning ethics, so we don't have to feed them.
Keep in mind that the North also had it's share of segregation and discrimination against poor(and by proxy Irish, Poles etc) and people of colour. It includes schools.
Also property tax as way of funding schools is awful.
My point was that elections here are almost always about improving public schools, but the government has not been able to over the course of decades. Call their stewardship what you will. Purposeful sabotage, accidental sabotage, whatever, doesn't really matter to me. What matter is that the government is not capable of enacting the voters will of having good public schools, which is why charters are so popular.