Only five years ago the Labour Party voted to abolish private schools altogether.
It is quite possible - or possibly quite likely - that the rationale behind the VAT and business rates policy is to make independent schools even more elitist/available only to the wealthiest.
This isn't a bug it’s a feature.
So once the middle classes and everyone scrimping to pay the fees have been driven from them, Labour can issue a rallying call to shut them completely as ultra-privileged anachronisms which must inevitably be brought down.
And rather than holding Labour to account to make material, meaningful improvements to state education, their salivating supporters will continue to seal clap them on.