The world always was characterized by differences between North and South, being the last poor countries. In a Europe without borders an imaginary line is drawn with a pencil called GDP, the EUROFRONTERA (Euroborder).
Young Europeans of South are provided of education by their own countries to enter in job market. But with a weakened and precarious job market young people are forced to emigrate, as their grandparents did decades ago. Difference is that these youth are fully qualified and maybe they do the same works as immigrants a century ago. Precarious jobs, at this way, Europe exports cheap labor from South to North.
In any case, if they are unable to find employment future laws will limit their stay. So, from one side to other, young Europeans are doomed to precariousness, to forced mobility and in the worst case to social exclusion.