The private landlord thing isn't quite right, I don't think. As I understand it, it's private landlords who have multiple houses on buy to rent mortgages & are currently the biggest recipients of housing benefit. They're certainly raking it in here in London.
I do strongly agree with stripping schools like Eton of their charitable status. They're not charities by any stretch of the imagination, they're businesses that serve the rich. I have a feeling this rescinding of charitable status has been the policy of the Greens and the LibDems too, for longer.
I don't think it would be a massive loss for the super-rich to leave the UK anyway, it's not like they pay their fair share of tax, anyway.
btw, I'm not a Labour voter although there's one local Labour councillor I vote for because she's really good on local stuff and she actually turns up to lmeetings in my area on cold winter evenings whereas I've never once seen the other two once, at meetings or anywhere else for that matter.