Well it is a matter of culture, isn't it? How can you say that by 2100 monarchies will disappear? just because in the States that doesn't make sense?
Hierarchy exists everywhere! in monarchies, in republics, in companies, even in trains or planes! The world does not live without hierarchy (it is a beautiful thought, but it is not real)...
A Monarchy, of course, would never work in US. It's not in US mind or culture to have monarchs (as it is not in European culture to look at actresses as if they were Gods...). A Monarchy would never work in US as a Republic would never work in UK, for instance, or as it isn't working in Portugal, where the supporters of are growing each day (about 30% of the population declared themselves to be monarchists... a litter more than that declare themselves republicans). Portugal is a country with almost 900 years of history, only 100 of them being a republic. Portugal was an empire in 1910 (with monarchy), now we hardly are a country... So as you said, we find great monarchies and great republics, each country and each people should be able to choose what is better for them. Unfortunately, unlike most monarchies that already asked people if they want to be monarchies or republics, republican countries don't ask the question. The republic, in most cases, was imposed, constitution was changed, and people don't have the right to choose (is that democracy?) (sorry if my English is confusing).
Well, you assume that merely because I'm American (a product of my birth), that I will automatically be "Behead the Tyrants!" - this is not the case. I do support Monarchy - actual Monarchy.
For me, Monarchy is legitimate only when the given Monarchy has historical ties to the given land, is of its major ethic group, and has reigned successfully in the past. Examples would be the Capet lines of France, the various German dukes, etc. I also strictly adhere to Salic Law. Thus making nearly all current reigning monarchs completely illegitimate. As they lack patrilineal descent from the founder (of the given dynasty). Perhaps I'm too traditional, but it seems to me that the essence of Monarchy is a line of Kings with noble blood. This distinction, is why they are legitimate. You'll note the Sun King as my avatar.
I believe you are confusing positions (which go top to bottom) and hierarchy (which is not necessarily the same in the case of Monarchs)
The traditional format/Pyramid:
God
King
Nobility
Free men
Serfs - Slaves
all others
This is not equal to the Republican pyramid:
Head of State (President)
Central Government elected by People
Lower institutions - autonomous regions, state governments, etc
All citizens (18+)
As you can see, the Monarchy system is entirely archaic, it lacks proper citizenship for its residents. In a Republic,
all people are
equal, this is not the case in Monarchy.
"A Republic would never work in the UK"
Well, with the dissolution of the Union, the de-establishment of the Church of England and the abolition of the English Monarchy being future events, it seems that your statement is false. Scotland and Wales will become independent, and hopefully ditch Eliz on their way out.
If the Portuguese Monarchy will bring Portugal out of second-rank status in Western Europe, I'd gladly support it. I have a deep admiration of Portugal, as of 2010, it is the only Iberian Republic (hopefully, Catalonia, Galicia and the Basque Country will join it in Iberian Republicanism).
There have been no formal referendums to offer a Republic. What did you mean by this?
And no worries on English, it's not my native language either.