Integration of persons in an international context and EU citizenship

During the past fifty years the European Union has gone a long way, even though some would like to have gone even further. It is possible to look at the EU as a social ecosystem, and as such as different from other ecosystems. This is a result of the fact that human populations, contrary to other plant or animal populations, do not adapt genetically to their environment, but they adapt through culture, which in turn can be divided into the material culture (technology) and the non-material culture (social organization). This is not the place to go into a detailed explanation of this theoretical model, but it suffices to say that social organization includes all forms of institutions created by Humanity (from the family to supranational organizations such as the European Union itself), as well as belief and value systems, and that all elements of culture, material or non-material, are instrumental responses adopted by human populations, rightly or wrongly, in their attempt to achieve better adaptation to their environment, that is, in their attempt to achieve the best possible conditions for survival.