My parents were both [retired] teachers, and sadly this is the truth. Some bottom N%, I don’t know if it’s 1 or 5 or 10 or whatever, but they are absolutely beyond anyone’s ability to rehab, let alone educate. Often no fault of their own. Broken families, parents don’t care, gangs, lots of reasons. Any effort spent on them is wasted. They are inevitably fucked, and will end up in some kind of institution (prison, mental health) or unemployable, by age 25. It’s a sad reality and not something politicians like to talk about. We pretend that if we just whip the teachers so they teach harder, these people will miraculously grow up to be functional adults. It’s not going to happen.

I remember a guy in my high school whose claim to fame was he dragged some other poor kid into the wood shop and filed his teeth down to nothing with a band saw. Spending 50% of the school budget on these blockheads is not going to rehab them.