@existentialbro At least the UNHCR mentions that it's only a "smaller proportion" that are migrants:
»The majority of people arriving in Italy and Greece especially have been from countries mired in war or which otherwise are considered to be ‘refugee-producing’ and for whom international protection is needed. However, a smaller proportion is from elsewhere, and for many of these individuals, the term ‘migrant’ would be correct.» - http://www.unhcr.org/55df0e556.html