I'm not sure he or his family deserve death threats etc for not liking the King or not wanting to wear a poppy. That's a pretty warped viewpoint. Last time I checked this was a free country.
I'd be more worried for those flag waving royalists that line the streets to clap and wave at someone who has done nothing more than be born, inherit mind blowing wealth and managed to put a crown on his head. Who's main duties include waving and smiling at the unwashed.
Yeah, well done mate, you're my hero