This is imperial mentality. Dutch is the language of the Netherlands not English and they have the right to use it.
If we follow your line Dutch will go the same way as Welsh or Basque.
If we follow your line Dutch will go the same way as Welsh or Basque.
Portugal has been better at that game when you consider its size.
No it won't. Mirroring important announcements in two languages is a thing most countries do, and their languages are far from extinct.