Unfortunately, it's become less of a Republican Party and more of a Royalist Party. A lot of it is owed to the influence in the last 25 years of a particular theocratic authoritarian strain that has infected the party. The Robertson/Falwell virus crosses submission to God to submission to Crown as God's representative. I think until Bush, Hirohito was God's last emperor (at least until MacArthur made hims renounce his divinity in '45)