I think we have established that Xenia believes sending your dcs to state school is moral equivilant of leaving a baby alone with a rottweiller and a bag of crystal meth.. Its just child abuse.
However most sane folk know that state schools provide a reasonable education for most, a shitty education for some and an excellent education for many.
It will not automatically make you unemployable, dirty, smelly and fick. or speak with the wrong accent.
As with any society, there is a super-slim layer of uber-priviliged at the top, whose concerns are naturally staying there and keeping tight hold of the silly money jobs. This layer is what Xenia has aspired to, and achieved according to her.
But society is a good deal larger and more complex, and a good deal more vibrant than that tiny portion of it, however safe it is. Innovation, excitement, artistic achievement, challenges to bad practice status quos, these are the things that make society a living thing.
Xenia's passionate emotional investment in the moral rectitude of class and privilege cannot be changed. Just don't try and dress it up as some kind of moral high ground.
Most decent, hardworking people who believe fervently in the value of a good education do not earn enough to send their children to private school. That's an economic fact. Writing off the backbone of our society because wages they don't earn enough to pay for private school is blinkered and destructive to society as a whole.
I know this doesn't matter to Xenia, as she has quite cheerfully admitted she doesn't give a toss about anybody else but herself and her children, but it matters to most of us, and it matters to those of us who can see a little bit beyond the privet hedges and private school lakes created to keep the rest of the world at bay.
Compassion, empathy, enlightenment, intellectual curiosity and humility. These are the kind of qualities that make a successful human being. Its sad but not surprising to see how little they seem to feature in X's life.