They are penalizing US companies for tax avoidance, that is the root of all problems. EU as an entity, benefits very little from internet technology boom. The US companies take the revenue, disrupt traditional industries and except perhaps Amazon, they don't offer oppurtunties of employment that could give them a voice in local politics.
So all in all, the US internet companies are the pinnacle of globalist creation, or the biggest beneficiaries of such policy, and in the looming protectionist era, they will become the first sacrifice.