pfr: You may wish to consider where VAT originated, and who has ultimate control over it.

Oh yes, the EU.
VAT started in UK in 1973 to harmonise us with tax practices in EU.
VAT cannot be zero-rated on E-books, nor on women's sanitary products because of EU rulings.

I seem to recall from the various Brexit threads that you are a supporter of continued membership.
Perhaps you should take it up with the EU.