If Sweetrobin would have been a real life character, how would the chatholic church react at his antics?

In A song of ice and fire the Vale is ruled by Robert Arryn aka Sweetrobin. He his a sick little boy who is ruled by his mother Lysa Arryn and he want to defenestrate a lot of people for no reason, that he a very spoiled child. When Tyrion is held prisoner at the Earyie , he recognizes that Robert Arryn would find him guilty no matter what he says, because Sweetrobin just wants defenestrate him. Tyrion wonders if arobert Arryn has done this before. My Question is , if Sweetrobin would be a real life character how would the nobles and especially the church react to his antics? Excomminicate him? Rebellion? Or would they leave him alone since he is very young and just strip Lysa of the regency?