By not voting for them. Not that we get to vote for the queen anyway.How about Spike Milligan's head on all british coins, talking of Goons? He's popular with the present lot of royalty at any rate, and with the great unwashed, to boot.
My evil ex-girlfriend's brother (who was a college friend of that bloke who does "Ali G") did a TV show in which he pretended to be "The Earl of Newmarket" and spent a week or two duping Americans to comic effect. OK, he's a twat, but it did show that if you tell enough people you're royalty with a straight face, they believe you. He even conferred a "knighthood" on a college professor in Philadelphia, and no one thought to question it. Maybe this shows that a title actually has no value whatsoever?
Oh dear. Just got myself struck off the birthday honours list there, didn't I?
EJ