Globalization or (globalisation) is the process by which the people of the world are unified into a single society and function together.

The film is humorous but illustrates a good point . We have mixed up the worlds people and the environments they evolved in, that made them what they are, are no longer in play.
This subject fascinates me. It has happened in what Carl Sagan would call 'a fraction of a second in the history of human existence', and its effect....hummm I would say its the biggest 'screw with mother nature' we've ever done and the effect has yet to come.
1491 this was a very different continent and the effect of 1492 was devastating to it.

Smallpox is now said to be the cause of the massive Buffalo herds of the Americas. ...scratching your head on that one are you.
The Buffalo population was controlled by it human Amerindian predators, smallpox was so devastating to the population the loss of predator caused the buffalo population to explode.Visiting Europeans having not seen America before this event mistakenly thought America was like this before they arrived, not realizing they where seeing an effect of Globalization.

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