Charles does have some baggage, but it's a safe bet he'll still be adored as King by the vast majority in England. It's his opportunity now. From what I've seen very few in England are protesting or complaining or making any negative comments at all, that's all coming from places external to England. It would be easy with social media and online news to confuse global grumbling about monarchies over past-centuries colonialism or the monarchy system made by others around the world, with how people in England actually feel. The English public is incredibly supportive of the monarchy and I don't see that changing anytime soon.