Except that since this is an even footing, as local players have to be listed on an EU exchange, and have to pay the same taxes it does not give anyone an unfair advantage. And it is not a tax on doing business in EU, it is a tax on earnings EARNT from the EU by the EU operation. Because the EU is a large market? And if some do leave, EU grown business will take their place. There are (relatively) few EU based car companies selling cars in USA, just like there are few foreign based car companies selling cars in Japan - and yet there are plenty of American car companies selling cars in USA and plenty of Japanese car companies selling cars in Japan. Neither country has a problem with the lack of EU or foreign cars as the domestic products are perfectly fine.