This is a socio-political discussion and in my opinion does not belong on the Religion Forum in the first place.
The author is anglican. There are Americans of various religious backgrounds with a fascination for royalty.
I personally see no point in a monarchy for the US and also see that it would be logically impossible to create or maintain, hence it's building castles in the air
The monarchy in England is not "defender of Anglicanism", neither are the monarchies in the Netherlands, Belgium, Denmark defenders of Calvinism, CAtholicism or Lutheranism.
Monarchs had their role to play but in this age of universal knowledge, opportunity and education, NEW ones do not serve a purpose and would be laughed out of power immediately -- haven't you wondered why Ghaddafi didn't declare himself king when he practically IS? Or Assad? Because no one will accept a new King in this day and age. The time for that is gone.
England, Spain, etc. got kings before WWII. To get one now would be just funny and no one would take it seriously -- not even in ex-Monarchial states like Bulgaria, Romania etc.
“”I personally see no point in a monarchy for the US””
There will never be one anyway,dear brother. I am of the opinion and believe a Catholic Monarchy is a better system than we have here if it could applied with Social and Economic Morality as written by Pope Leo XIII and others.