A century ago, the Dutch told the winners of WWI to screw off. These days I highly doubt the Netherlands would take such a stand nor let a warmonger within their borders. More details are at this link. I’m not surprised his memoirs were full of crap on his role in the Great War. My friend’s book about why Germany lost lays much of the blame at the Kaiser’s feet, especially in setting up the nation for failure.
I didn’t know Churchill offered him refuge as the Nazis invaded. Obviously he refused because he felt some sick vindication through Hitler’s blitzkrieg success over the French and English.