If I had to guess what is going through Charles’ mind … he has always indicated he favours a reformed and slimmed-down monarchy so if Andrew expects anything else he is even more of fool than he seems.
Furthermore Charles knows him - really knows him. If you thought your pathetic, odious little brother had been doinking a 17 year old in shady circumstances, wouldn’t you feel utterly disgusted and ashamed to be associated with him? Especially if your ageing mum obliged you to cooperate with the whole “well he’s family, we stick by him” routine. I’d be wanting to send a message loud and clear: I don’t approve, I don’t stick by him.
As for Andrew, I would like to see him on his uppers, living in penury and shame. Some fit punishment for a crime I think it’s quite clear he knowingly participated in. Trafficking young girls? Ugh. Even more sickening when you consider he has daughters of his own.