Why World Cannot Be United

Nothing will change. World will still remain divided by race, religion, profession and so on.

Why a 'unified world' even needed to begin with?

Cells divide rather than unify. Thus unifying the world contradicts the basic principles of life.

Idea that these things divide humanity is backward to begin with. That is it is not that these things were always there as an evil obstacle to separate humanity into groups. It was that humans created these divisions deliberately to separate themselves from people they did not like. Just like people build fences to separate their lawn from that of their neighbor.

Languages too used to be one, but then divided into several. During Roman Empire time, there was only one Latin language. Not one language in the Empire as Egyptians and Jews had their own language, but there was only one Latin Language, that Romans themselves invented and used.

However over the course of first millennium, when the empire collapsed, different parts of the empire started alter the Latin language they used, a little bit at first, them more and more later. Overtime these localized Latin languages became mutually unintelligible. In modern times instead of calling them Latin Language, we instead call it a language family that includes all the languages that split from the original Latin. The main splinter languages are Spanish, French, Italian, Romanian, Portuguese, but there are also plenty smaller ones, such as Monegasque or Romansch.

This trend somewhat continues in former Spanish colonies. They all use Spanish, but there are some regional variations here and there. Some words Uruguayans use would puzzle even a Colombian, much less a Spaniards. They still do not call it an Uruguayan language.

However boers from South Africa did. When their ancestors moved from Netherlands to South Africa around 400 years ago, they all spoke the same Dutch they use in Netherlands, However over time their language evolved separately from Dutch and became its own thing. Now they call their language Afrikaans.

When we settle Alpha Centaurii and other Galaxies, we will speak Centaurian and other new languages and will never go back.

Even European Union, that unites European countries, only increase number of languages, that is spoken throughout the Union.

The reasons for these divisions are the reality itself. When old does not work, one has to create new and better.

Maybe Rome was great once, but eventually it became corrupt and unable to satisfy its citizens. Thus it had to be abolished and replaced with a system that works for the people. Ancient Romans did not want to care for the old geezer emperors, so they ditched them in favor of north-eastern barbarians, who do more for less money.