@Lustig Andrei,
The problems with the children of migrants are not caused by Germany! On the contrary, I know of no other land which bends over backwards so much, in order to integrate people. It can sometimes be very embarrassing, for people of a another nationality, to observe how the German public has shown inferiority complex, even from leading politicians denounce their own citizens. UNBELIEVABLE.
The real difficulties stem from families, who are not prepared to accept the environment of the country in which they have chosen to live.