They tried and lost. They can threaten all they want. The EU would let them and good riddance as far as we're concerned. But there is this pesky notion that it's a huge market and Apple earns a lot of money there. So, they really can't walk away from that. For the same reason they play by Chinese rules in China. Because it's a big market and they need to be in on that as well. And if you think the EU is picky, the Chinese are much worse. And of course there's a whole world outside the EU and China that is paying attention as well. Apple's negotiation position simply is not that strong. It has no real leverage. And Apple as a US only company would not be anywhere near it's current size and importance. Share holders would revolt. R&D investment would implode. It has to be an international company for it to justify its share price. So, it has to adjust and can't afford to exit markets. It has no choice.