I also find Paola and Albert's behavior to be over the top and ridiculous. The damage has already been done, IMO. Laurent may be obnoxious, but there is still nothing more obnoxious than two parents who chose not to visit their mentally ill son in the hospital. Nothing excuses that, IMO.
Claire has done quite a few engagements on her own. She's done something with at the de Ligne castle for the past two or three years, and she's also had an event for a few years at with a theatre group
Kudos to Claire, she's really the better person here, I'd probably let go of either of them if they tried to hold my arm. Specially Paola, who couldn't be bothered to visit her son but was willing to release that nasty statement
And I'm glad that Philippe in his own way is trying to do something for his brother in whatever little he may be able to. IMO, both siblings understand what Laurent is going through, he's the one whose paternity has always been in question and having the 'loving' parents they have, it might have made them a tighter unit. Good for Philippe for not just letting his brother go and washing his hands, I can understand that it might be difficult, but at least, he's trying to do something positive for his brother.