Space Cadet Gdansk is not the Polish name of the city smartarse Gda sk is and I doubt you can pronounce that And given that Polish is not the indigenous language of the area the Kashubian name Gdu sk would be the proper name by that standard But since we do not call Warsaw Warszawa only because the region was an integral part of Poland your reasoning makes no sense in the first place People need to finally come to terms again with the concept of exonyms dammit