One would have thought Germany had much to be proud of, not least for absorbing relatively painlessly 17 million people mired in Communism. A guest, presumably, is someone who comes to visit and then leaves. One wonders how Cohen would respond if his dinner guest decided he liked his host's home so much that he would make it his own. This should sets our hearts fluttering about Hitler, Goebbels, Albert Speer, Alfred Rosenberg and the rest of the gang. It is of course total nonsense.
Most countries define national identity according to blood.
If your parents are American then you are an American. In 1999 Chancellor Schroder's government changed the law. Foreigners now have the right to apply for German citizenship after eight years of legal residence. Children born in Germany to foreign parents will acquire German citizenship at birth, provided at least one parent has lived legally in Germany for a minimum of eight years. Children acquiring German citizenship at birth will have to decide before their 23rd birthday whether they want to retain their German citizenship or their parents' citizenship except in special circumstances.