In a just society, there wouldn’t be a need for these expensive schools, or for private wealth to subsidize something as fundamental as an education. We wouldn’t give rich kids and a tiny number of lottery winners an outstanding education while so many poor kids attend failing schools. In a just society, an education wouldn’t be a luxury item.

We have become a country with vanishingly few paths out of poverty, or even out of the working class. We’ve allowed the majority of our public schools to founder, while expensive private schools play an outsize role in determining who gets to claim a coveted spot in the winners’ circle. Many schools for the richest American kids have gates and security guards; the message is you are precious to us. Many schools for the poorest kids have metal detectors and police officers; the message is you are a threat to us.

Public-school education—the specific force that has helped generations of Americans transcend the circumstances of their birth—is profoundly, perhaps irreparably, broken.