-I get the history between the UK and the US but never understood that weird obsession some here have with the British monarchy. They go absolutely bonkers over anything with the royal family. Part of that I suspect is from the news media's constant obsessing over them. The daily coverage here of the Queen Elizabeth's passing was excessive and then some. Sure mark the occasion, the historical perspective, report on the transition of roles/power, but then leave it alone, especially, as you pointed out, Charles reigns but doesn't rule.
-Another thing I think some here obsess over is the notion that European, at least in their mind, means fancy, or higher class. Pretty sure it's not some leftover loyalist mentality from the American Revolution, but they look around at their fellow countrymen here and think 'heathens!' lol Maybe it's just some sort of fantasy they have in their mind that takes over every now and then.