Not to disagree with you Darius but just a couple of things to add on your points...
...and became a rather irrelevant post-colonial second rate power on the global stage.
Sounds awfully harsh, but you may be onto something. Could it not be argued that this downgrade of prestige was not inevitable however? How was a country of 60-million really going to compete with vastly larger economies (United States, Soviet Union, China, etc) once the world became increasingly globalized post-WW2? No one expects Canada, for instance, with a population around 1/9th the size to compete with the US economy, military strength and global influence either...
Her country is peopled by many who no longer value the core British values which gave birth to the British bulldog spirit, replaced by a cringeworthy Cool Britannia and celebrity mania.
Fair point, but things are rather cyclical don't you think? "Cool Britannia" being the natural response to the doldrums of the 70s and 80s. Plus wasn't that movement technically over by the early-2000s? Sounds like Brit pop culture isn't all that much different from Ameican pop culture...a hodge-podge of clashing subcultures, with blurred lines between them, creating a scene. The only way I can't stand what I see young people wearing and listening to these days is because I realize the "mainstream" has less meaning and relevance than at any time in recent memory.
I'd draw a parallel with the United States by suggesting that while there may be an excess of empty headed fluff, more people are talking about politics and social issues now than probably at any point since the end of the Vietnam War.
Her Kingdom is in the throws of a constitutional meltdown with the UK being broken apart by greedy politicans who care for no more than lining their pockets and trying to appear to be "with it".
It's bad indeed...but compared with the polarization on a level of historic proportions in the US and the Eurozone economic crisis, I'd say it's rather on par with the 21st century issues being faced by Britain's allies and neighbors.
All in all I think when we consider the 200 years of British growth prior to 1952, the reign of QEII will be considered as the reign when Great Britain lost its way, its place in the world and its very soul.
Sheesh! Well, has a British monarch ever wielded so little political influence as the current Queen? And I don't that mean that as a criticism but rather a constitutional reality. Because of this how much of what ails England can really be attributed to her?