Ironically, technically speaking, there are seemingly more similarities between British English, i.e., Anglican German and current High German due to various perversions and "reforms" of the German language over the last many decades, in order to drive the Germanic people away from each other.

If the EU were a serious and legitimate institution, there would be an effort to implement reforms that nudge English, Dutch, and present day German all towards better mutual intelligibility, NOT diversion from each other through perversion and "simplification", or what seems to be a pollution and destruction of the current German and Dutch language through what at least Germans have a term for, "Verdenglichung", i.e., the portmanteau of German (De..) and English, prefixed with "ver...", meaning the transformation or application of.