Yes but if you make up the 'price' of licensing the various IP from the tax haven subsidiary each year, and the eventual profit equation for the UK subsidiary a

Yes but if you make up the 'price' of licensing the various IP from the tax haven subsidiary each year, and the eventual profit equation for the UK subsidiary adds up to 0 every year over several years, it's clear that the IP licensing purchases are just being used to avoid taxes. That's profit shifting.