I'm not saying they should pay no tax but my guidelines still apply. Keep taxes reasonable. Don't be dicks about it. France is being a dick. They made their own tax laws. If what companies do is legal under their tax law you can't whine about it and try to extort/sue them for more. Instead, change the law and deal with the fallout (more tax revenue or more unemployed French people). If there's no incentive for a company to have employees in a country there will be NO taxes paid and they can all eat cake.