Are borders really necessary for a globally connected civilization as advanced as we are now? We are already so connected that borders, if they do anything at all, merely pose problems to what would otherwise be solutions. We are all one human race, deeply interconnected by technological advancements that allow us to even transcend the limitations of language. Borders are no better an existence in this world than are things such as racism, sexism, or other forms of division-based inequalities.
We are not meant to live in a state of survival. By that, I mean that focusing our efforts and attention on nothing but growing food and maintaining buildings and making clothing and other "necessities" is only just the beginning of civilization. Life is about so much more. There is no reason we can't create a technologically advanced global civilization that works in harmony with mother nature. In fact, done right, technology itself operates in harmony with nature. After all, it is based on and invented out of the stuff of nature.