fine...If I was those parents I would decide that me and my family be addressed as His/Her Majesty. Or some other silly thing.
Make them be subject to the same silly rules and sue them for not participating
In that vein… make them address you as Grand Master or imperial wizard or some such
I lean more now to the pronouns FkYou/BlwMe. There are other more tyrannical, less sensible options, nobody should object to these alternate ones.