A Global Goverment?

We had an interesting discussion in Politics today, about whether it is impossible to have a unified world government as such. Of course there were many different opinions, but in the end it remained clear that if we couldn't even get consensus on the idea in a class of 150 students, how will we ever become unified enough to even think of a one government ruled world.

I must say I am siding with the no's on this one. Do we really want one government that controls all? Do we really want one ultimate superpower to end all superpowers?

The problem with this theory is that it's just too utopian. Its central idea is that all of sudden everyone will reach agreement on topics like; religion, the environment and of course what are we going to do about world finances.

The utopian theory accepts that, the planet is populated by very fair minded and open minded and mild minded people. These people are unfortunately few. In a government like this, there could not be anything like a fanatical point of view, since that would lead to discourse and people in disagreement is not what you want in a one party state.

No one is saying it is a bad idea. It is just not a workable idea.