> As I said as you accumulate wealth in Europe it's very likely that you gave a very large share of it back to the government just in the process of accumulating it.
This may be true for small- to mid-sized fortunes, but not for the really large ones. Ikea in particular is a counter-example for this. They operate a super-tight network of companies, funds and trusts in multiple countries apart from Sweden like the Netherlands and some off-shore tax paradises and perform any possible trick, including the usual fake self-licensing tactics, to reduce their tax burden to next-to-nothing.
The difference to Amazon and Co. is mostly that Ikea is privately-owned, thus you can't simply invest some money in them to at least reap some of the profits of these tactics for yourself. The profits all pile up in private vaults of the owner, which is basically the Kamprad family (with exact ownership stakes being unknown of course, another difference from the publicity requirements that public companies are required to meet).