I was reading the opening a little more closely this time. I have to say the the whole pro's of being a monarchy such as "However of all the former British Colonies, it is only those Dominions, such as Australia, which have retained The Crown, which have been able to keep their freedoms and democracy intact." are opinionated and dismissive.
The system of government of Government used by most constitutional monarchies are in fact hyprids of the classical republican module anyways.
Point in fact.
Checks and balances.
Head of State
Head of Government
The Populace
The Nobles
The courts.
These are the classical checks and balances, all of which are in play in the UK and generally in the constitutional monarchies of some commonwealth nations such as Canada.
Of course they are called different things in different nations. Put really it is as simple as changing a name in a constitutional monarchy and replacing it with a president to make a republic.
If you want more proff of the classical republican module in play read on.
Take the early Repubic of Rome and the current system in the UK.
Concul- King/Queen
Senate- House of Lords
Commons- Assembly of the Plebs/The Mob
Primminster/PM- Tribunate/Tribune
The government reflects that of the Republic of Rome but with only changes to the names.
You could argue because of the Constitutional monarchy and modern society, the Queen/King and the nobles in our society are not seen as being important because of our belief everyone is born basically equal, and thus the Head of State and the "Senate" the house of Lords have little power as they once had. If the UK replaced the house of Lords with elected persons with manadates and replaced the Queen or made an elected proxy for her, then these people and posistions would have true manadates.
I don't mind living in a constitutional monarchy because it's close to a republic anyways but I'd prefer to give the Senate's/House of Lords and the Queen more power by giving them, or the proxys manadates.