I mean Labour are hoist by their own petard - by losing furure supporters - not the prior students being hoist. Just realised that could read either way, sorry!
(eta: I don't think Labour's shite falls on people who went to private school more than others - they harm all successful, responsible people, and that's not down to the school someone attended)
To me, it does make sense that private school alumni would support a political party which claims to help the more vulnerable in society - because private schools actively teach social responsibility. It is a bitter irony that Labour are trying to destroy the very sector which most actively teaches the values they claim to believe in.
But most people over time gain enough economic understanding to question whether that self-proclaimed goodness actually translates into good outcomes for society. I decided a long time ago that it doesn't, even when it's well-meaning - as most of us believed it was during Blair's time - let alone with this current, vindictive shower.