This wedding violates nature! Prince William is of superior royal blood. Kate Middleton is of inferior blood. She hasn't been bred or cultivated like a fine horse. Her virginity hasn't been protected by a locked chastity belt. Thus, royal little-Willy may be sharing her intimate parts with some common darky she met on vacation in Trinidad. Keeping this lowly tart as a mistress for ten years had precedent. However, if she can fill the royal wife role, who is to say that a low born couldn't fill the king role as well. Besides, it was her duty as a subject to submit her body unto her better, she shouldn't hope for more.
If you disagree with the above sentiments, you have what's called morality. Still, you shouldn't be celebrating the big to-do either. These are some of the foundational concepts of royalty. Monarchs have surely changed. Yet, they've only relinquished as much power and privilege as they've been forced to by public protest or even lethal force. Many nations demanded that South Africa renounce the racist institution of apartheid before embracing them in the world community. William and Kate must renounce this equally-heinous institution before ethical people can fully support them.
Don't say you're celebrating simply because you're proud to be a British citizen. If enough folks were proud of being equal citizens, they'd give these caste-mongers polite notice to vacate all publically-funded buildings and wean themselves off public money. If alleged royals refuse to move or find honest employment, they should be escorted in handcuffs (rather than rudely executed as so many were in the past).
Don't say I can't understand because I'm American. That's why I understand. I've watched many of my countrymen defend the base tradition of slavery, because their pride exceeded their moral compass. I wish William and Kate all the happiness in the world. Nonetheless, only a fool or a knave can laud a public display of ongoing institutionalized racism. William and Kate may very well do the proper thing in time. Let's set a good example by showing them that some commoners know the difference between right and wrong.
In Trafalgar Square is a statue of colonial hardass General Napier. When asked for a response to the Indian tradition of burning widows with their dead husbands, he quipped, "We also have a custom: when men burn a woman alive, we tie a rope around their necks and hang them.... You may follow your custom. And then we will follow ours." Tradition is no excuse for oppression. Britain's medieval caste system may be alive and even fashionably-attired, but ethical people should cast it on the funeral pyre as soon as possible.