Over the years I've gotten questions that make me think:

The most often asked question I get is "why have a Queen?",  "what does she actually do?"
Others say "yes, but if she makes an oath at her coronation to govern her people, yet hands over the power to an elected parliament (most of whom do not take their oath to her seriously), in what way does she "defend our laws"?

Others state "She can only act on the advice of her ministers, and MUST do, then what is her function?"  One person did ask me "could not a goldfish do that!?"

The Queen can only come to realms like Australia if invited, so how is she a sovereign lord?

I don't know if you have read Hilaire Belloc?  Very hard to sum up his vast knowledge and views in a short email, however he does seem to have predicted the rise of over-might subjects and ever more Protestent parliament, and a growing legal class.  Seeing the last true monarchs of Britian as being the Stuart's.  It's been some time since I've read his book Charles I but I seem to remember something about the aristocracy being the enemy of true monarchy.

Great monarchs like the Bible's King David or France's Louis XIV were rulers, not someone there to give a respectable face to a parliamentary dictatorship.

I suppose some would argue The Pope to be the last of the true king rulers and will be very safe from overthrow.