How do you manage an entity the size of the entire population of the planet? With a government strong enough, and pervasive enough, to put down any rebellion, any faction. Why is this inevitable? Because there would be no alternative country/place to go. They would have to stop any discontent quickly and brutally, lest it become a movement. With separate countries and governments, they can always invite you to leave, and if you hate your current country enough you will. But when there is one world government...doomsday, or at the least every soul on the planet will give up hopes of really being free, rather than fight a system they cannot flee or defeat. Some good reading below from: http://www.kansascity.com/273/story/736969.html
www.kansascity.com | 08/06/2008 | GOLDBERG: Capitalism is the cure for what ails the world: "People ask, “Why is there poverty in the world?” It’s a silly question. Poverty is the default human condition. It is the factory preset of this mortal coil.
The interesting question isn’t “Why is there poverty?” It’s “Why is there wealth?” Or: “Why is there prosperity here but not there?”
At the end of the day, the first answer is capitalism, rightly understood. That is to say: free markets, private property, the spirit of entrepreneurialism and the conviction that the fruits of your labors are your own.
In large measure our wealth isn’t the product of capitalism, it is capitalism.
And yet we hate it. Leaving religion out of it, no idea has given more to humanity. The average working-class person today is richer, in real terms, than the average prince or potentate of 300 years ago."