Well, they were never called Hollandish anyway, so they can still be Dutch:P
And I believe the country in question is Switzerland, not the Netherlands.
And isn't the Dutch word for 'Dutch', 'Nederlands' anyway?
Apparently they changed the English word for 'Dutch' was changed during the World Wars to 'Netherlands' (similar to the non-translated word), so that it wouldn't sound like 'Deutsch', the German word for 'German'.
Such lame propaganda was common, much like the renaming of the German Shephard breed of dog to the Alsation.