I'm sorry, but both my 6 and 4 year olds have a pretty good sense by now of who Ford is. Try going to Ross Petty's pantomine each Christmas -- the kids love booing the villain. This is no different.
The idea that a Christmas event is not spoiled when it is presided over by a chief magistrate that has become an international laughingstock, who has been stripped of his powers, who has admitted to doing hard drugs while in office (which appears to be the least of his offences) and who by the preponderance of the evidence has vast criminal associations, regularly drives drunk, has major domestic issues (that may involve abuse), and associates with escorts, just to scratch the surface, but the event IS spoiled if said chief magistrate is booed by a citizenry that considers it grossly inappropriate for such a man to preside over such an event, because then you might have to explain something to the kids, is a little hard to grasp.