But fair point. And because the bigger players who can hire expensive accountants can always mask their profits, we shouldn't tax profits. It's too malleable. Hey, even VAT is a better tax.
Put another way, why should Irish businesses and consumers pay increased VAT and a new land tax so that Apple's profits can be tax free?
See https://en.wikipedia.org/wiki/Tax_incidence
It's pretty intriguing, and doesn't align very well with our intuition. As far as I can tell, your hypothesis about the impact of VAT is not really supported by that.
Income taxes or even refunds or a basic income can fix that up.
VAT is mostly flat.
(I am in favour of taxing land by value for most or even all government expenditure. That's highly progressive, impossible to evade, and does not distort the economy at all: land's supply is fixed.)