I had a look at what the OECD said about UK education & thought it interesting that they view the UK (really the English) system as 'heavily private'. This is because they define any school with an independent board of governors as private, even if all its funding is from public sources:
'An institution is classified as private if its overall control and management rest with a non governmental organisation (e.g. a church, trade union, business enterprise or foreign or international agency) and if most of the members of its governing board are not selected by a public agency'.
There is a lot of diversity of provision within the state sector due to academisation, free schools and the emergence of multi-school trusts.
How do public and private schools differ in OECD countries? | OECD
The tone of some comments here is just out-of-kilter with what the general public thinks.
My guess is that people in general don't feel strongly and categorise it with other special interests. People in general support the right to educate your child how you wish, and might also be very happy to access private education if they (we) had a large windfall. They use private tuition an awful lot: nursery schools, driving lessons, football academies, extracurriculars more generally. They aren't against doing whatever you think best to support your own children.
But they didn't support a continued tax exemption, and survey evidence is really clear on that - both YouGov and Deltapoll, to name two sources. The Civitas report for which the Deltapoll survey was commissioned is striking because Civitas is centre-right: Civitas: Institute for the Study of Civil Society Independent schools: What does the public think?
There is a lot of need around today which has been neglected for a very long time. Things are genuinely tougher for people on lower incomes and those with multiple disadvantages (health, income, housing...).
If it seems like good luck to live somewhere with cheap housing, think about what the opportunities might be like there.
It's just hard to see any positive case for raising the basic income tax rate - affecting lower-paid workers disproportionately, who have already been caught by fiscal drag - before removing this exemption.
That isn't to say that relatively better-off people have no needs, or don't deserve fellow-feeling. But they usually have more choices and control over their lives. And on average, they will get through the next few tough years in better shape than the much less fortunate.