Wait for it ... wait for it ... Bingo!  The anti-royalty grumps!

If you were right, I'd tend to agree with you.  But a couple of points:  The British royalty and their pageantry attract hundreds of thousands, if not millions, of tourists to the UK every year.  The Royal Family's cost is not billions of dollars; in 2014-25 it was less than $50 million.  Much of their property is accessible by the public, and like their jewels and other belongings are actually public property; they can't abscond to the Caymans with them.  And on and on.

After more than 150 years of very close relations, you'd think some of us would have gotten over that Revolutionary War thing.