How does it being EU-wide help KLM/AirFrance? It's not like people is going to take flights out of London or Berlin instead of Paris or Amsterdam to avoid the t

How does it being EU-wide help KLM/AirFrance? It's not like people is going to take flights out of London or Berlin instead of Paris or Amsterdam to avoid the tax. Or maybe you mean that if it's only NL and France it will just bankrupt KLM/AirFrance while it is's EU-wide it will bankrupt them all.