I mentioned Walmart because they sell some furniture too, though the article points out that IKEA doesn't really have true competitors. You're right, Walmart has avoided quite a bit of tax, and that would be unfair relative to other big box stores or supermarkets. However, I don't think the magnitude of tax savings is anywhere near that of IKEA running in the guise of a charity.

In any case, I'm certainly not arguing for Walmart. I'm merely pointing out that these tax avoidance schemes lead to unfair competition when not all players have access to the same schemes. It should be a level regulatory environment for everyone.